16437 + Interview Questions in Mathematics Page 21 InterviewSolution

1001.	In a triangle ABC, ∠ ABC + ∠ BCA = 120° . Find the value of ∠CAB.
Answer» In a triangle ABC, $∠$ ABC + $∠$ BCA = 120° . Find the value of $∠$ CAB.

Discussion

1002.	Which of the following is equal to 12.3 × 7.89?(i) 1.23 × 7.89(ii) 0.123 × 789(iii) 1.23 × 78.9(iv) 123 × 7.89(v) 12.3 × 0.789
Answer» Which of the following is equal to 12.3 × 7.89? (i) 1.23 × 7.89 (ii) 0.123 × 789 (iii) 1.23 × 78.9 (iv) 123 × 7.89 (v) 12.3 × 0.789

1002.

Which of the following is equal to 12.3 × 7.89?(i) 1.23 × 7.89(ii) 0.123 × 789(iii) 1.23 × 78.9(iv) 123 × 7.89(v) 12.3 × 0.789

Answer»

Which of the following is equal to 12.3 × 7.89?

(i) 1.23 × 7.89

(ii) 0.123 × 789

(iii) 1.23 × 78.9

(iv) 123 × 7.89

(v) 12.3 × 0.789

Discussion

1003.	Three points X, Y, Z are on a striaght line such that XY = 10 and XZ 3. What is theproduct of all possible values of YZ?
Answer» Three points X, Y, Z are on a striaght line such that XY = 10 and XZ 3. What is theproduct of all possible values of YZ?

Discussion

1004.

पाठ के आधार पर मिलान कीजिए − नीला कामचलाऊ पिता रव तैनाती भारतीय वाद्ययंत्र उपकरण वैज्ञानिक रहस्य घटिया समुद्र फोटॉन नींव भेदन कलकत्ता

Answer»

पाठ
के आधार पर मिलान
कीजिए −

नीला	कामचलाऊ
पिता	रव
तैनाती	भारतीय वाद्ययंत्र
उपकरण	वैज्ञानिक रहस्य
घटिया	समुद्र
फोटॉन	नींव
भेदन	कलकत्ता

Discussion

1005.	If – 4x ≥ 2, then x _______ –3.
Answer» If – 4x ≥ 2, then x _______ –3.

Discussion

1006.	The Given bar graph represents the number of students of different classes of a school who participated in a competition.Study the bar graph and answer the following question:How many students of class I, class II and class IV altogether participated in the competition ?
Answer» The Given bar graph represents the number of students of different classes of a school who participated in a competition. Study the bar graph and answer the following question: How many students of class I, class II and class IV altogether participated in the competition ?

Discussion

1007.	15. Find the digit at unit place of the product of all the 4 digit numbers, which can be formed by using the digits1,3,7 and 9.(repetition is not allowed).
Answer» 15. Find the digit at unit place of the product of all the 4 digit numbers, which can be formed by using the digits1,3,7 and 9.(repetition is not allowed).

Discussion

1008.	A man works for 5 days in a week. Find the total number of days worked by the man in the february month.(non leap year)
Answer» A man works for 5 days in a week. Find the total number of days worked by the man in the february month.(non leap year)

Discussion

1009.	The statement "A number when multiplied by fifteen gives nine" can be algebraically expressed as ________.
Answer» The statement "A number when multiplied by fifteen gives nine" can be algebraically expressed as ________.

Discussion

1010.	A triangle similar to triangle having sides 3cm,4cm,5cm is drawn with a scale factor 2.fubd the length of sides of new triangle
Answer» A triangle similar to triangle having sides 3cm,4cm,5cm is drawn with a scale factor 2.fubd the length of sides of new triangle

Discussion

1011.	Can you find more words ending with-lessfriendless, homeless, ________________________________________ ___________________
Answer» Can you find more words ending with-less friendless, homeless, ____________________ ____________________ ___________________

Discussion

1012.	The least number of square tiles that will be needed to pave a plot 225 m by 30 m is _____
Answer» The least number of square tiles that will be needed to pave a plot 225 m by 30 m is _____

Discussion

1013.	The value of 27−59 is equal to which value among the following options?
Answer» The value of $27 - 59$ is equal to which value among the following options?

Discussion

1014.	Which number has no line of symmetry?
Answer» Which number has no line of symmetry?

Discussion

1015.	The value of (−23)+(14)+(−17) is
Answer» The value of $(- 23) + (14) + (- 17)$ is

Discussion

1016.	The lengths of three segments are given for constructing a triangle. Say whether a triangle with these sides can be drawn. Give the reason for your answer.(1) 17 cm, 7 cm, 8 cm (2) 7 cm, 24 cm, 25 cm(3) 9 cm, 6 cm, 16 cm (4) 8.4 cm, 16.4 cm, 4.9 cm(5) 15 cm, 20 cm, 25 cm (6) 12 cm, 12 cm, 16 cm
Answer» The lengths of three segments are given for constructing a triangle. Say whether a triangle with these sides can be drawn. Give the reason for your answer. (1) 17 cm, 7 cm, 8 cm (2) 7 cm, 24 cm, 25 cm (3) 9 cm, 6 cm, 16 cm (4) 8.4 cm, 16.4 cm, 4.9 cm (5) 15 cm, 20 cm, 25 cm (6) 12 cm, 12 cm, 16 cm

Discussion

1017.	The perimeter of a square and an equilateral triangle are equal. If the length of side of equilateral triangle is 4 cm more than that of the square, then find the perimeter of the square.
Answer» The perimeter of a square and an equilateral triangle are equal. If the length of side of equilateral triangle is 4 cm more than that of the square, then find the perimeter of the square.

Discussion

1018.	What is the geometry of OF2 ?
Answer» What is the geometry of OF2 ?

Discussion

1019.	A football team gains 3 and 4 points for successive 2 days and loses 5 points on the third day. Find the total points scored by the team by tree diagram. 2
Answer» A football team gains 3 and 4 points for successive 2 days and loses 5 points on the third day. Find the total points scored by the team by tree diagram. 2

Discussion

1020.	There is a quadrilateral ABCD with AB=4 cm, BC= 3cm, AD= 2cm, CD= 2cm and angle B=90∘. Can such a quadrilateral exist? Explain. [2 MARKS]
Answer» There is a quadrilateral ABCD with AB=4 cm, BC= 3cm, AD= 2cm, CD= 2cm and angle $B = 90^{\circ}$ . Can such a quadrilateral exist? Explain. [2 MARKS]

Discussion

1021.	3.5 + 4.05 - 6.005 = X. The value of X is:
Answer» 3.5 + 4.05 - 6.005 = X. The value of X is:

Discussion

1022.	A student multiplied a number by 35 instead of 53. What is the percentage error in the calculation ?
Answer» $A student multiplied a number by \frac{3}{5} instead of \frac{5}{3} . What is the percentage error in the calculation ?$

Discussion

1023.	Which of the following numbers are divisible by 12?
Answer» Which of the following numbers are divisible by $12$ ?

Discussion

1024.	पाठ के आधार पर स्पष्ट कीजिए कि 'इस अभागे आलसी देश में जो कुछ हो जाए वहीं बहुत कुछ है क्यों कहा गया है?
Answer» पाठ के आधार पर स्पष्ट कीजिए कि 'इस अभागे आलसी देश में जो कुछ हो जाए वहीं बहुत कुछ है क्यों कहा गया है?

Discussion

1025.	Express the ratio 15:27 as a fraction.
Answer» Express the ratio $15 : 27$ as a fraction.

Discussion

1026.	Question 79Bachhu Manjhi earns Rs. 24000 in 8 months. At this rate,a) how much does he earn in one year?b) in how many months does he earn Rs. 42000?
Answer» Question 79 Bachhu Manjhi earns Rs. 24000 in 8 months. At this rate, a) how much does he earn in one year? b) in how many months does he earn Rs. 42000?

1026.

Question 79Bachhu Manjhi earns Rs. 24000 in 8 months. At this rate,a) how much does he earn in one year?b) in how many months does he earn Rs. 42000?

Answer»

Question 79

Bachhu Manjhi earns Rs. 24000 in 8 months. At this rate,

a) how much does he earn in one year?

b) in how many months does he earn Rs. 42000?

Discussion

1027.	Expressthe following as improper fractions:(a) (b) (c) (d) (e) (f)
Answer» Express the following as improper fractions: (a) (b) (c) (d) (e) (f)

1027.

Expressthe following as improper fractions:(a) (b) (c) (d) (e) (f)

Answer»

Express
the following as improper fractions:

(a) (b) (c)

(d) (e) (f)

Discussion

1028.	45×112−910×112=112×().
Answer» $\frac{4}{5} \times \frac{11}{2} - \frac{9}{10} \times \frac{11}{2} = \frac{11}{2} \times$ ().

Discussion

1029.	If BD is the angular bisector of ∠ABD , then find the ∠DBC.
Answer» If BD is the angular bisector of ∠ABD , then find the ∠DBC.

Discussion

1030.	Question 7 Out of the given four options, only one is correct. Write the correct answer. Which of the following letters has only one line of symmetry? (a) H (b) X (c) Z (d) T
Answer» Question 7 Out of the given four options, only one is correct. Write the correct answer. Which of the following letters has only one line of symmetry? (a) H (b) X (c) Z (d) T

1030.

Question 7 Out of the given four options, only one is correct. Write the correct answer. Which of the following letters has only one line of symmetry? (a) H (b) X (c) Z (d) T

Answer»

Question 7

Out of the given four options, only one is correct. Write the correct answer.

Which of the following letters has only one line of symmetry?

(a) H (b) X (c) Z (d) T

Discussion

1031.	Sum of GCD of 18 & 27 and 77 & 132 is
Answer» Sum of GCD of 18 & 27 and 77 & 132 is

Discussion

1032.	Estimate the product 475 × 225 rounding off each number to the nearest hundred.
Answer» Estimate the product 475 × 225 rounding off each number to the nearest hundred.

Discussion

1033.	A milkman pours 10 jugs of milk into a container. If the capacity of each jug is 500 ml, then how many litres of milk did he pour in the container?5
Answer» A milkman pours 10 jugs of milk into a container. If the capacity of each jug is 500 ml, then how many litres of milk did he pour in the container? 5

Discussion

1034.	In the given figure, ∠CAE=84∘. If ∠B:∠C=3 : 4, then ∠B = ___ and ∠C = ___,
Answer» In the given figure, $∠ C A E = 84^{\circ}$ . If $∠ B : ∠ C = 3 : 4,$ then $∠ B$ = ___ and $∠ C$ = ___,

Discussion

1035.	Find the total number of match sticks required to make n such letters as shown.
Answer» Find the total number of match sticks required to make $n$ such letters as shown.

1035.

Find the total number of match sticks required to make n such letters as shown.

Answer»

Find the total number of match sticks required to make $n$ such letters as shown.

Discussion

1036.	A certain game was played by 18 players as a team, in which 23rd of the team actually played the game, while the rest were reserve players – ready to replace the main members who got injured. How many reserve players did this team have?
Answer» A certain game was played by 18 players as a team, in which ${\frac{2}{3}}^{r d}$ of the team actually played the game, while the rest were reserve players – ready to replace the main members who got injured. How many reserve players did this team have?

Discussion

1037.	The cost of a machine depreciates by 10% every year. Find the price after 2 years if the initial cost of the machine was ₹30,000.
Answer» The cost of a machine depreciates by 10% every year. Find the price after 2 years if the initial cost of the machine was ₹30,000.

Discussion

1038.	Find the largest factor that is common to both 27 and 36.
Answer» Find the largest factor that is common to both $27$ and $36.$

Discussion

1039.	If AT=34-1201 and B=-121123, find AT − BT.
Answer» If $A^{T} = [\begin{matrix} 3 & 4 \\ - 1 & 2 \\ 0 & 1 \end{matrix}] and B = [\begin{matrix} - 1 & 2 & 1 \\ 1 & 2 & 3 \end{matrix}]$ , find A^T − B^T.

Discussion

1040.	Two lines are said to be if they do not intersect, when extended infinitely in both the directions.
Answer» Two lines are said to be if they do not intersect, when extended infinitely in both the directions.

Discussion

1041.	Put sign ,=: (-3)-(-4)________(-4)+(-3)
Answer» Put sign <,>,=: (-3)-(-4)________(-4)+(-3)

Discussion

1042.	Check whether the following ratios are in proportion or not.(i) 15 : 30 and 20 : 40(ii) 25 : 1 and 5 : 20
Answer» Check whether the following ratios are in proportion or not. (i) 15 : 30 and 20 : 40 (ii) 25 : 1 and 5 : 20

Discussion

1043.	The bar graph shown below gives the number of goals scored by a football player AJU. Find the difference between the range and average of the goals scored by AJU in these 5 matches.
Answer» The bar graph shown below gives the number of goals scored by a football player AJU. Find the difference between the range and average of the goals scored by AJU in these 5 matches.

1043.

The bar graph shown below gives the number of goals scored by a football player AJU. Find the difference between the range and average of the goals scored by AJU in these 5 matches.

Answer»

The bar graph shown below gives the number of goals scored by a football player AJU. Find the difference between the range and average of the goals scored by AJU in these 5 matches.

Discussion

1044.	Question 194 Three brands A, B and C of biscuits are available in packets of 12,15, and 21 biscuits, respectively. If a shopkeeper wants to buy an equal number of biscuits of each brand, what is the minimum number of packets of each brand, he should buy?
Answer» Question 194 Three brands A, B and C of biscuits are available in packets of 12,15, and 21 biscuits, respectively. If a shopkeeper wants to buy an equal number of biscuits of each brand, what is the minimum number of packets of each brand, he should buy?

1044.

Question 194 Three brands A, B and C of biscuits are available in packets of 12,15, and 21 biscuits, respectively. If a shopkeeper wants to buy an equal number of biscuits of each brand, what is the minimum number of packets of each brand, he should buy?

Answer»

Question 194

Three brands A, B and C of biscuits are available in packets of 12,15, and 21 biscuits, respectively. If a shopkeeper wants to buy an equal number of biscuits of each brand, what is the minimum number of packets of each brand, he should buy?

Discussion

1045.	Question 2 (a) Give reasons for the following: A square can be thought of as a special rectangle.
Answer» Question 2 (a) Give reasons for the following: A square can be thought of as a special rectangle.

1045.

Question 2 (a) Give reasons for the following: A square can be thought of as a special rectangle.

Answer»

Question 2 (a)

Give reasons for the following:

A square can be thought of as a special rectangle.

Discussion

1046.	What is the measure of (i) a right angle? (ii) a straight angle?
Answer» What is the measure of (i) a right angle? (ii) a straight angle?

Discussion

1047.	Which of the following can be used to compare lengths of two lines?
Answer» Which of the following can be used to compare lengths of two lines?

Discussion

1048.	Largest 4 digit number divisible by 5 is .Smallest 4 digit number divisible by 5 is .
Answer» Largest 4 digit number divisible by 5 is . Smallest 4 digit number divisible by 5 is .

Discussion

1049.	Question 1 (a) Find the sum of the following: 0.007 + 8.5 + 30.08
Answer» Question 1 (a) Find the sum of the following: 0.007 + 8.5 + 30.08

1049.

Question 1 (a) Find the sum of the following: 0.007 + 8.5 + 30.08

Answer»

Question 1 (a)

Find the sum of the following:
0.007 + 8.5 + 30.08

Discussion

1050.	Every recurring decimal is a _________ number.
Answer» Every recurring decimal is a _________ number.

Discussion

Explore topic-wise InterviewSolutions in .

In a triangle ABC, ∠ ABC + ∠ BCA = 120° . Find the value of ∠CAB.

Which of the following is equal to 12.3 × 7.89?(i) 1.23 × 7.89(ii) 0.123 × 789(iii) 1.23 × 78.9(iv) 123 × 7.89(v) 12.3 × 0.789

Three points X, Y, Z are on a striaght line such that XY = 10 and XZ 3. What is theproduct of all possible values of YZ?

If – 4x ≥ 2, then x _______ –3.

The Given bar graph represents the number of students of different classes of a school who participated in a competition.Study the bar graph and answer the following question:How many students of class I, class II and class IV altogether participated in the competition ?

15. Find the digit at unit place of the product of all the 4 digit numbers, which can be formed by using the digits1,3,7 and 9.(repetition is not allowed).

A man works for 5 days in a week. Find the total number of days worked by the man in the february month.(non leap year)

The statement "A number when multiplied by fifteen gives nine" can be algebraically expressed as ________.

A triangle similar to triangle having sides 3cm,4cm,5cm is drawn with a scale factor 2.fubd the length of sides of new triangle

Can you find more words ending with-lessfriendless, homeless, ________________________________________ ___________________

The least number of square tiles that will be needed to pave a plot 225 m by 30 m is _____

The value of 27−59 is equal to which value among the following options?

Which number has no line of symmetry?

The value of (−23)+(14)+(−17) is

The lengths of three segments are given for constructing a triangle. Say whether a triangle with these sides can be drawn. Give the reason for your answer.(1) 17 cm, 7 cm, 8 cm (2) 7 cm, 24 cm, 25 cm(3) 9 cm, 6 cm, 16 cm (4) 8.4 cm, 16.4 cm, 4.9 cm(5) 15 cm, 20 cm, 25 cm (6) 12 cm, 12 cm, 16 cm

The perimeter of a square and an equilateral triangle are equal. If the length of side of equilateral triangle is 4 cm more than that of the square, then find the perimeter of the square.

What is the geometry of OF2 ?

A football team gains 3 and 4 points for successive 2 days and loses 5 points on the third day. Find the total points scored by the team by tree diagram. 2

There is a quadrilateral ABCD with AB=4 cm, BC= 3cm, AD= 2cm, CD= 2cm and angle B=90∘. Can such a quadrilateral exist? Explain. [2 MARKS]

3.5 + 4.05 - 6.005 = X. The value of X is:

A student multiplied a number by 35 instead of 53. What is the percentage error in the calculation ?

Which of the following numbers are divisible by 12?

पाठ के आधार पर स्पष्ट कीजिए कि 'इस अभागे आलसी देश में जो कुछ हो जाए वहीं बहुत कुछ है क्यों कहा गया है?

Express the ratio 15:27 as a fraction.

Question 79Bachhu Manjhi earns Rs. 24000 in 8 months. At this rate,a) how much does he earn in one year?b) in how many months does he earn Rs. 42000?

Expressthe following as improper fractions:(a) (b) (c) (d) (e) (f)

45×112−910×112=112×().

If BD is the angular bisector of ∠ABD , then find the ∠DBC.

Question 7 Out of the given four options, only one is correct. Write the correct answer. Which of the following letters has only one line of symmetry? (a) H (b) X (c) Z (d) T

Sum of GCD of 18 & 27 and 77 & 132 is

Estimate the product 475 × 225 rounding off each number to the nearest hundred.

A milkman pours 10 jugs of milk into a container. If the capacity of each jug is 500 ml, then how many litres of milk did he pour in the container?5

In the given figure, ∠CAE=84∘. If ∠B:∠C=3 : 4, then ∠B = ___ and ∠C = ___,

Find the total number of match sticks required to make n such letters as shown.

A certain game was played by 18 players as a team, in which 23rd of the team actually played the game, while the rest were reserve players – ready to replace the main members who got injured. How many reserve players did this team have?

The cost of a machine depreciates by 10% every year. Find the price after 2 years if the initial cost of the machine was ₹30,000.

Find the largest factor that is common to both 27 and 36.

If AT=34-1201 and B=-121123, find AT − BT.

Two lines are said to be if they do not intersect, when extended infinitely in both the directions.

Put sign ,=: (-3)-(-4)________(-4)+(-3)

Check whether the following ratios are in proportion or not.(i) 15 : 30 and 20 : 40(ii) 25 : 1 and 5 : 20

The bar graph shown below gives the number of goals scored by a football player AJU. Find the difference between the range and average of the goals scored by AJU in these 5 matches.

Question 194 Three brands A, B and C of biscuits are available in packets of 12,15, and 21 biscuits, respectively. If a shopkeeper wants to buy an equal number of biscuits of each brand, what is the minimum number of packets of each brand, he should buy?

Question 2 (a) Give reasons for the following: A square can be thought of as a special rectangle.

What is the measure of (i) a right angle? (ii) a straight angle?

Which of the following can be used to compare lengths of two lines?

Largest 4 digit number divisible by 5 is .Smallest 4 digit number divisible by 5 is .

Question 1 (a) Find the sum of the following: 0.007 + 8.5 + 30.08

Every recurring decimal is a _________ number.

Can you find more words ending with-lessfriendless, homeless, ______________________ _

In the given figure, ∠CAE=84∘. If ∠B:∠C=3 : 4, then ∠B = _ and ∠C = _,