19743 + Interview Questions in Mathematics Page 148 InterviewSolution

7351.	Consider the function, f(x)=x+1, 0≤x≤2, then fof(x) is
Answer» Consider the function, $f (x) = x + 1, 0 \leq x \leq 2,$ then $f o f (x)$ is

Discussion

7352.	In the term 10x2y3z4, the generalized coefficient of x2 is .
Answer» In the term $10 x^{2} y^{3} z^{4}$ , the generalized coefficient of $x^{2}$ is .

Discussion

7353.	In the given figure, ∠P ≅ ∠R seg PQ ≅ seg RQProve that, ∆ PQT ≅ ∆ RQS
Answer» In the given figure, $∠$ P $≅$ $∠$ R seg PQ $≅$ seg RQ Prove that, $∆$ PQT $≅$ $∆$ RQS

Discussion

7354.	49.One of the angles of a triangle is 50^° and other two angles are equal.find the measure of each of the equal angles
Answer» 49.One of the angles of a triangle is 50^° and other two angles are equal.find the measure of each of the equal angles

Discussion

7355.	Question 1(viii)Factorise the following expressionsa4+2a2b2+b4
Answer» Question 1(viii) Factorise the following expressions $a^{4} + 2 a^{2} b^{2} + b^{4}$

Discussion

7356.	I can't understand the basic properties of triangles
Answer» I can't understand the basic properties of triangles

Discussion

7357.	If marked price = ₹990 and percentage of discount is 10, then find the selling price.
Answer» If marked price = ₹990 and percentage of discount is 10, then find the selling price.

Discussion

7358.

The number of boys and girls, in std 5 to std 8 in a Z.P. school is given in the table. Draw a subdivided bar graph to show the data.(Scale : On Y axis, 1 cm = 10 students) Standard 5th 6th 7th 8th Boys 34 26 21 25 Girls 17 14 14 20

Answer» The number of boys and girls, in std 5 to std 8 in a Z.P. school is given in the table. Draw a subdivided bar graph to show the data.

(Scale : On Y axis, 1 cm = 10 students)

Standard	5th	6th	7th	8th
Boys	34	26	21	25
Girls	17	14	14	20

Discussion

7359.	The lengths of two sides of a triangle are 6 cm and 8 cm. Between which two numbers can the length of the third side fall? (assuming the length of the third side to be x cm )
Answer» The lengths of two sides of a triangle are $6 c m$ and $8 c m$ . Between which two numbers can the length of the third side fall? (assuming the length of the third side to be $x c m$ )

Discussion

7360.	Express 150% as a fraction.
Answer» Express 150% as a fraction.

Discussion

7361.	Following 10 observations are arranged in ascending order as follows. 2, 3, 5, 9, x + 1, x + 3, 14, 16, 19, 20 If the median of the data is 11, find the value of x
Answer» Following 10 observations are arranged in ascending order as follows. 2, 3, 5, 9, x + 1, x + 3, 14, 16, 19, 20 If the median of the data is 11, find the value of x

Discussion

7362.	Find the value of expression: 2a - 2b - 10 + 4a + b, if a = 5 and b = 1.
Answer» Find the value of expression: 2a - 2b - 10 + 4a + b, if a = 5 and b = 1.

Discussion

7363.	Which one of the following letters has point symmetry?
Answer» Which one of the following letters has point symmetry?

Discussion

7364.	If a triangular field has sides 210 m, 180 m and 230 m long, then find the length of a wire required to fence the field.
Answer» If a triangular field has sides 210 m, 180 m and 230 m long, then find the length of a wire required to fence the field.

Discussion

7365.	In a grocery store, Bharat bought a tin of biscuits for ₹22.29 and a box of sweets for ₹17.60. How much did Bharat pay rounded off to the nearest integer?
Answer» In a grocery store, Bharat bought a tin of biscuits for ₹22.29 and a box of sweets for ₹17.60. How much did Bharat pay rounded off to the nearest integer?

Discussion

7366.	The degree of the expression $\dfrac{5x^3+2}{3x^{-2}$ is
Answer» The degree of the expression $\dfrac{5x^3+2}{3x^{-2}$ is

Discussion

7367.	ntThe value of 1/(3+2-1) on simplifying upto 3 decimal places is ,given that 2 = 1.4142 and 3 = 2.4495n ntA) 0.166n ntB) 0.366n ntC) 0.466n ntD) 0.566n ntn
Answer» ntThe value of 1/(3+2-1) on simplifying upto 3 decimal places is ,given that 2 = 1.4142 and 3 = 2.4495n ntA) 0.166n ntB) 0.366n ntC) 0.466n ntD) 0.566n ntn

Discussion

7368.	What will be the first class interval, if the fifth class interval is 60 - 65, the fourth class interval is 55 - 60 and a total number of classes is limited to five?
Answer» What will be the first class interval, if the fifth class interval is 60 - 65, the fourth class interval is 55 - 60 and a total number of classes is limited to five?

Discussion

7369.	Find theamount to be paid at the end of 3 years in each case:(a) Principal= Rs 1,200 at 12% p.a. (b) Principal= Rs 7,500 at 5% p.a.
Answer» Find the amount to be paid at the end of 3 years in each case: (a) Principal = Rs 1,200 at 12% p.a. (b) Principal = Rs 7,500 at 5% p.a.

7369.

Find theamount to be paid at the end of 3 years in each case:(a) Principal= Rs 1,200 at 12% p.a. (b) Principal= Rs 7,500 at 5% p.a.

Answer»

Find the
amount to be paid at the end of 3 years in each case:

(a) Principal
= Rs 1,200 at 12% p.a.

(b) Principal
= Rs 7,500 at 5% p.a.

Discussion

7370.	x2+10x+25=
Answer» $x^{2} + 10 x + 25 =$

Discussion

7371.	Select all the expressions having exponent 4.
Answer» Select all the expressions having exponent $4.$

Discussion

7372.	A hostel had rations for 500 kids for 60 days . After 12 days , 300 students join the hostel . How long will the food last?
Answer» A hostel had rations for 500 kids for 60 days . After 12 days , 300 students join the hostel . How long will the food last?

Discussion

7373.	Question 1(vi)Identify the terms, their coefficients for the following expressions: 0.3a – 0.6ab + 0.5 b
Answer» Question 1(vi) Identify the terms, their coefficients for the following expressions: 0.3a – 0.6ab + 0.5 b

Discussion

7374.	Three integers are multiplied to give 12. One of the numbers is the second smallest natural number. Other two numbers are not whole numbers and they differ by one unit. What are the three integers?
Answer» Three integers are multiplied to give 12. One of the numbers is the second smallest natural number. Other two numbers are not whole numbers and they differ by one unit. What are the three integers?

Discussion

7375.	A car is moving on a straight road covers one third of distance with speed of 20km/h and rest with a speed of 60km/h. The average speed of the car is
Answer» A car is moving on a straight road covers one third of distance with speed of 20km/h and rest with a speed of 60km/h. The average speed of the car is

Discussion

7376.	Question 67 (ix)Look at the shape given below and state if it is a polyhedron using Euler's formula.
Answer» Question 67 (ix) Look at the shape given below and state if it is a polyhedron using Euler's formula.

Discussion

7377.	Question 8 (ii) The following figures GUNS and RUNS are parallelograms. Find x and y. (Lengths are in cm)
Answer» Question 8 (ii) The following figures GUNS and RUNS are parallelograms. Find x and y. (Lengths are in cm)

Discussion

7378.	Given U={x:x∈N,x≤9}, A={x:x is divisible by 2} and B ={x:x3∈N}, then (A ∪ B) - (A ∩B) = ___.
Answer» Given $U = {x : x \in N, x \leq 9}$ , $A = {x : x i s d i v i s i b l e b y 2$ } and B $= {x : \frac{x}{3} \in N}$ , then (A $\cup$ B) - (A $\cap$ B) = ___.

Discussion

7379.	Question 48 Fill in the blanks to make the statement true. If x−78=78, then x=.........
Answer» Question 48 Fill in the blanks to make the statement true. If $x - \frac{7}{8} = \frac{7}{8}, t h e n x = . . . . . . . . .$

7379.

Question 48 Fill in the blanks to make the statement true. If x−78=78, then x=.........

Answer»

Question 48

Fill in the blanks to make the statement true.

If $x - \frac{7}{8} = \frac{7}{8}, t h e n x = . . . . . . . . .$

Discussion

7380.	The solid formed by folding the given net is:
Answer» The solid formed by folding the given net is:

7380.

The solid formed by folding the given net is:

Answer»

The solid formed by folding the given net is:

Discussion

7381.	In ∆PQR, point S is the midpoint of side QR. If PQ = 11, PR = 17, PS =13, find QR.
Answer» In ∆PQR, point S is the midpoint of side QR. If PQ = 11, PR = 17, PS =13, find QR.

Discussion

7382.	A square is cut along its diagonal into four triangles and these are arranged on another square of same area to form a larger square. The area of the larger square is 32 sq.units. Then the area of the original square is _____. ,
Answer» A square is cut along its diagonal into four triangles and these are arranged on another square of same area to form a larger square. The area of the larger square is 32 sq.units. Then the area of the original square is _____. ,

7382.

A square is cut along its diagonal into four triangles and these are arranged on another square of same area to form a larger square. The area of the larger square is 32 sq.units. Then the area of the original square is _____. ,

Answer»

A square is cut along its diagonal into four triangles and these are arranged on another square of same area to form a larger square. The area of the larger square is 32 sq.units. Then the area of the original square is _____.

,

Discussion

7383.	In the given figure, POQ is a line, then the value of 'x' is
Answer» In the given figure, POQ is a line, then the value of 'x' is

Discussion

7384.	If X is a random variable with the following probability distribubtion: X: x1 x2 ________ xn P(X): p1 p2 ________ pnThen, Mean (X) = _____________.
Answer» If X is a random variable with the following probability distribubtion: X: x₁ x₂ ________ x_n P(X): p₁ p₂ ________ p_n Then, Mean (X) = _____________.

Discussion

7385.	Radhika bought a new mobile phone and saved Rs 1000 when a discount of 15% was given. What was the price of the mobile phone before the discount? [4 MARKS]
Answer» Radhika bought a new mobile phone and saved Rs 1000 when a discount of 15% was given. What was the price of the mobile phone before the discount? [4 MARKS]

Discussion

7386.	The cubic polynomial p(x) satisfies p(0)=1, p(1)=20, p(2)=40, p(3)=60. Then the value of p(4) is
Answer» The cubic polynomial $p (x)$ satisfies $p (0) = 1, p (1) = 20, p (2) = 40, p (3) = 60.$ Then the value of $p (4)$ is

Discussion

7387.	https://goo.gl/search/Pi+Day Pi Day, Celebration HAPPY PI DAY .BYJUS 3/14 It's March 14th
Answer» https://goo.gl/search/Pi+Day Pi Day, Celebration HAPPY PI DAY .BYJUS 3/14 It's March 14th

Discussion

7388.	If A and B are two events such that PA∪B=A∩B, then P (exactly one of A and B occurs) = _____________.
Answer» If A and B are two events such that $P (A \cup B) = (A \cap B),$ then P (exactly one of A and B occurs) = _____________.

Discussion

7389.	Jim's ladder has 6 steps placed at every13 m .The maximum height Jim can climb upto on his ladder is
Answer» $Jim's ladder has 6 steps placed at every \frac{1}{3} m . The maximum height Jim can climb up to on his ladder is$

Discussion

7390.	Question 3(iv) Solve the following : People of Sundergram planted a total of 102 trees in the village garden. Some of the trees were fruit trees. The number of non-fruit trees are two more than three times the number of fruit trees. What was the number of fruit trees planted?
Answer» Question 3(iv) Solve the following : People of Sundergram planted a total of 102 trees in the village garden. Some of the trees were fruit trees. The number of non-fruit trees are two more than three times the number of fruit trees. What was the number of fruit trees planted?

Discussion

7391.	If AB and CD are parallel, find the value of x in degrees?
Answer» If AB and CD are parallel, find the value of x in degrees?

Discussion

7392.	Write a pair of integers whose product is -12 and there lies seven integers between them (excluding the given integers).
Answer» Write a pair of integers whose product is -12 and there lies seven integers between them (excluding the given integers).

Discussion

7393.	A cat sits at 10 on the number line. If it moves by 20 units to the left (towards zero), where will it end up?
Answer» A cat sits at $10$ on the number line. If it moves by $20$ units to the left (towards zero), where will it end up?

Discussion

7394.	Write the expanded form of 0.0504.
Answer» Write the expanded form of 0.0504.

Discussion

7395.	Question 75 9 added to twice a number gives 13. Find the number.
Answer» Question 75 9 added to twice a number gives 13. Find the number.

7395.

Question 75 9 added to twice a number gives 13. Find the number.

Answer»

Question 75

9 added to twice a number gives 13. Find the number.

Discussion

7396.	निम्नलिखित प्रश्न के उत्तर एक-दो पंक्तियों में दीजिए − रामन् भावुक प्रकृति प्रेमी के अलावा और क्या थे?
Answer» निम्नलिखित प्रश्न के उत्तर एक-दो पंक्तियों में दीजिए − रामन् भावुक प्रकृति प्रेमी के अलावा और क्या थे?

7396.

निम्नलिखित प्रश्न के उत्तर एक-दो पंक्तियों में दीजिए − रामन् भावुक प्रकृति प्रेमी के अलावा और क्या थे?

Answer»

निम्नलिखित प्रश्न के उत्तर एक-दो पंक्तियों में दीजिए −

रामन् भावुक प्रकृति प्रेमी के अलावा और क्या थे?

Discussion

7397.	The three angles are in ratio 2:3:5. find the measure of each angle. classify the triangle
Answer» The three angles are in ratio $2 : 3 : 5$ . find the measure of each angle. classify the triangle

Discussion

7398.	Given that length of a side of an equilateral triangle is 3.4m. Find its perimeter in cm? [3 MARKS]
Answer» Given that length of a side of an equilateral triangle is 3.4m. Find its perimeter in cm? [3 MARKS]

Discussion

7399.	The mixed form of improper fraction 28/5 is
Answer» The mixed form of improper fraction 28/5 is

Discussion

7400.	What is multiplicative inverse of-5/-7
Answer» What is multiplicative inverse of-5/-7

Discussion

Explore topic-wise InterviewSolutions in .

Consider the function, f(x)=x+1, 0≤x≤2, then fof(x) is

In the term 10x2y3z4, the generalized coefficient of x2 is .

In the given figure, ∠P ≅ ∠R seg PQ ≅ seg RQProve that, ∆ PQT ≅ ∆ RQS

49.One of the angles of a triangle is 50^° and other two angles are equal.find the measure of each of the equal angles

Question 1(viii)Factorise the following expressionsa4+2a2b2+b4

I can't understand the basic properties of triangles

If marked price = ₹990 and percentage of discount is 10, then find the selling price.

The number of boys and girls, in std 5 to std 8 in a Z.P. school is given in the table. Draw a subdivided bar graph to show the data.(Scale : On Y axis, 1 cm = 10 students) Standard 5th 6th 7th 8th Boys 34 26 21 25 Girls 17 14 14 20

The lengths of two sides of a triangle are 6 cm and 8 cm. Between which two numbers can the length of the third side fall? (assuming the length of the third side to be x cm )

Express 150% as a fraction.

Following 10 observations are arranged in ascending order as follows. 2, 3, 5, 9, x + 1, x + 3, 14, 16, 19, 20 If the median of the data is 11, find the value of x

Find the value of expression: 2a - 2b - 10 + 4a + b, if a = 5 and b = 1.

Which one of the following letters has point symmetry?

If a triangular field has sides 210 m, 180 m and 230 m long, then find the length of a wire required to fence the field.

In a grocery store, Bharat bought a tin of biscuits for ₹22.29 and a box of sweets for ₹17.60. How much did Bharat pay rounded off to the nearest integer?

The degree of the expression $\dfrac{5x^3+2}{3x^{-2}$ is

ntThe value of 1/(3+2-1) on simplifying upto 3 decimal places is ,given that 2 = 1.4142 and 3 = 2.4495n ntA) 0.166n ntB) 0.366n ntC) 0.466n ntD) 0.566n ntn

What will be the first class interval, if the fifth class interval is 60 - 65, the fourth class interval is 55 - 60 and a total number of classes is limited to five?

Find theamount to be paid at the end of 3 years in each case:(a) Principal= Rs 1,200 at 12% p.a. (b) Principal= Rs 7,500 at 5% p.a.

x2+10x+25=

Select all the expressions having exponent 4.

A hostel had rations for 500 kids for 60 days . After 12 days , 300 students join the hostel . How long will the food last?

Question 1(vi)Identify the terms, their coefficients for the following expressions: 0.3a – 0.6ab + 0.5 b

Three integers are multiplied to give 12. One of the numbers is the second smallest natural number. Other two numbers are not whole numbers and they differ by one unit. What are the three integers?

A car is moving on a straight road covers one third of distance with speed of 20km/h and rest with a speed of 60km/h. The average speed of the car is

Question 67 (ix)Look at the shape given below and state if it is a polyhedron using Euler's formula.

Question 8 (ii) The following figures GUNS and RUNS are parallelograms. Find x and y. (Lengths are in cm)

Given U={x:x∈N,x≤9}, A={x:x is divisible by 2} and B ={x:x3∈N}, then (A ∪ B) - (A ∩B) = ___.

Question 48 Fill in the blanks to make the statement true. If x−78=78, then x=.........

The solid formed by folding the given net is:

In ∆PQR, point S is the midpoint of side QR. If PQ = 11, PR = 17, PS =13, find QR.

A square is cut along its diagonal into four triangles and these are arranged on another square of same area to form a larger square. The area of the larger square is 32 sq.units. Then the area of the original square is _____. ,

In the given figure, POQ is a line, then the value of 'x' is

If X is a random variable with the following probability distribubtion: X: x1 x2 ________ xn P(X): p1 p2 ________ pnThen, Mean (X) = _____________.

Radhika bought a new mobile phone and saved Rs 1000 when a discount of 15% was given. What was the price of the mobile phone before the discount? [4 MARKS]

The cubic polynomial p(x) satisfies p(0)=1, p(1)=20, p(2)=40, p(3)=60. Then the value of p(4) is

https://goo.gl/search/Pi+Day Pi Day, Celebration HAPPY PI DAY .BYJUS 3/14 It's March 14th

If A and B are two events such that PA∪B=A∩B, then P (exactly one of A and B occurs) = _____________.

Jim's ladder has 6 steps placed at every13 m .The maximum height Jim can climb upto on his ladder is

Question 3(iv) Solve the following : People of Sundergram planted a total of 102 trees in the village garden. Some of the trees were fruit trees. The number of non-fruit trees are two more than three times the number of fruit trees. What was the number of fruit trees planted?

If AB and CD are parallel, find the value of x in degrees?

Write a pair of integers whose product is -12 and there lies seven integers between them (excluding the given integers).

A cat sits at 10 on the number line. If it moves by 20 units to the left (towards zero), where will it end up?

Write the expanded form of 0.0504.

Question 75 9 added to twice a number gives 13. Find the number.

निम्नलिखित प्रश्न के उत्तर एक-दो पंक्तियों में दीजिए − रामन् भावुक प्रकृति प्रेमी के अलावा और क्या थे?

The three angles are in ratio 2:3:5. find the measure of each angle. classify the triangle

Given that length of a side of an equilateral triangle is 3.4m. Find its perimeter in cm? [3 MARKS]

The mixed form of improper fraction 28/5 is

What is multiplicative inverse of-5/-7

If X is a random variable with the following probability distribubtion: X: x1 x2 xn P(X): p1 p2 pnThen, Mean (X) = _____.