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5151.

Find the value of 210 × 310.

Answer»

Find the value of 210 × 310.

5152.

In an acute angled triangle all the angles are less than

Answer»

In an acute angled triangle all the angles are less than

5153.

Question 1(iii) Use a suitable identity to get each of the following products:(2a−7)(2a−7)

Answer»





Question 1(iii)

Use a suitable identity to get each of the following products:

(2a7)(2a7)
5154.

Arjun’s height is 170 cm. If the scale on the graph is 1:10, then the height of Arjun on the graph is represented as ____ units.17

Answer» Arjun’s height is 170 cm. If the scale on the graph is 1:10, then the height of Arjun on the graph is represented as ____ units.
  1. 17
5155.

In an examination, 65% of the total examinees passed. If the number of failures is 420, the total number of examinees is (a) 500 (b) 1000 (c) 1200 (d) 1625

Answer»

In an examination, 65% of the total examinees passed. If the number of failures is 420, the total number of examinees is

(a) 500

(b) 1000

(c) 1200

(d) 1625

5156.

Find the approximate change in the volume V of a cube of side x metres caused by increasing side by 1%.

Answer» Find the approximate change in the volume V of a cube of side x metres caused by increasing side by 1%.
5157.

Which of the following is the equation of given line joining point A and point B?

Answer»

Which of the following is the equation of given line joining point A and point B?

5158.

The following pair of sets is: A = {2, 3, 5, 7, 11}. B = {prime numbers < 12}.

Answer»

The following pair of sets is:

A = {2, 3, 5, 7, 11}.

B = {prime numbers < 12}.


5159.

Question 3 (iii)Find the square root of the following decimal numbers:51.84

Answer»

Question 3 (iii)

Find the square root of the following decimal numbers:

51.84


5160.

26. What is the difference between Euclid's division lemma and Euclid's division algorithm?

Answer» 26. What is the difference between Euclid's division lemma and Euclid's division algorithm?
5161.

An almirah is sold at ₹5225 after allowing a discount of 5%. Find its marked price.

Answer»

An almirah is sold at ₹5225 after allowing a discount of 5%. Find its marked price.



5162.

Write the following decimal in the place value table:200.812

Answer»

Write the following decimal in the place value table:



200.812



5163.

ifa2+b2+c2 =280 and ab+bc+ca=9/2,then find the value of (a+b+c)^2

Answer» ifa2+b2+c2 =280 and ab+bc+ca=9/2,then find the value of (a+b+c)^2
5164.

f:R→R, f(x) = ax^5+bx^4+cx^3+dx^2+ex+f,a, b, c, d, e, f £ R. Why it is not one-one?

Answer» f:R→R,
f(x) = ax^5+bx^4+cx^3+dx^2+ex+f,
a, b, c, d, e, f £ R.
Why it is not one-one?
5165.

x - y \longdiv { x ^ { 7 } - y ^ { 7 }

Answer» x - y \longdiv { x ^ { 7 } - y ^ { 7 }
5166.

Which of the following rational numbers lie betwen 37 and 48 ?

Answer»

Which of the following rational numbers lie betwen 37 and 48 ?



5167.

A can do a job in 16 days and B can do the same job in 12 days. With the help of C, they can finish the job in 6 days only. Then, C alone can finish it in (a) 34 days (b) 22 days (c) 36 days (d) 48 days

Answer»

A can do a job in 16 days and B can do the same job in 12 days. With the help of C, they can finish the job in 6 days only. Then, C alone can finish it in

(a) 34 days

(b) 22 days

(c) 36 days

(d) 48 days

5168.

Question 119 The ratio between the curved surface area and the total surface area of a right circular cylinder is 1 : 2. Find the ratio between the height and radius of the cylinder.

Answer»

Question 119

The ratio between the curved surface area and the total surface area of a right circular cylinder is 1 : 2. Find the ratio between the height and radius of the cylinder.

5169.

Factorise - 2a^2b^2 +2b^2c^2 +2c^2a^2 -a^4 -b^4 -c^4

Answer» Factorise - 2a^2b^2 +2b^2c^2 +2c^2a^2 -a^4 -b^4 -c^4
5170.

Let the latus ractum of the parabola y2=4x be the common chord to the circles C1 and C2 each of them having radius 2√5. Then, the distance between the centres of the circles C1 and C2 is:

Answer»

Let the latus ractum of the parabola y2=4x be the common chord to the circles C1 and C2 each of them having radius 25. Then, the distance between the centres of the circles C1 and C2 is:

5171.

Tap on the option where the hexagon is divided into two symmetrical shapes.

Answer»

Tap on the option where the hexagon is divided into two symmetrical shapes.

5172.

In how many ways a committee of 6 people can be chosen from a panel of 13 people, if a certain person from 13 people must be on the committee?

Answer»

In how many ways a committee of 6 people can be chosen from a panel of 13 people, if a certain person from 13 people must be on the committee?

5173.

What is drawn in the first step in constructing a quadrilateral for which 2 sides and 3 angles are known?

Answer»

What is drawn in the first step in constructing a quadrilateral for which 2 sides and 3 angles are known?



5174.

What number should be added to −78 so as to get 59?

Answer»

What number should be added to 78 so as to get 59?

5175.

The square of 130000 ends with ______ number of zeroes.8

Answer» The square of 130000 ends with ______ number of zeroes.
  1. 8
5176.

How many interior angles are there in a closed shape of 'n' number of straight edges? number of interior angles

Answer» How many interior angles are there in a closed shape of 'n' number of straight edges?



number of interior angles
5177.

The following data relates to the expenses for a household in Bangalore. ItemsExpenditure(in Rs)Food4000Clothing2000Rent1500Education1500Miscellaneous1000 The central angle of Clothing will be ___.

Answer»

The following data relates to the expenses for a household in Bangalore.
ItemsExpenditure(in Rs)Food4000Clothing2000Rent1500Education1500Miscellaneous1000
The central angle of Clothing will be ___.


5178.

Solve:

Answer»

Solve:

5179.

The value of 30×42×5−2 is ...........

Answer»

The value of 30×42×52 is ...........

5180.

Find the square root.(i) 625 (ii) 1225 (iii) 289 (iv) 4096 (v) 1089

Answer» Find the square root.

(i) 625 (ii) 1225 (iii) 289 (iv) 4096 (v) 1089
5181.

Express 3600 as a product of powers of its prime factors.

Answer» Express 3600 as a product of powers of its prime factors.
5182.

A dealer marks his goods at 35% above the cost price and allows a discount of 20% on the marked price . Find his gain or loss per cent.

Answer»

A dealer marks his goods at 35% above the cost price and allows a discount of 20% on the marked price . Find his gain or loss per cent.

5183.

Find the value of 27a^3+8b^3-125c^3 given that abc=0 and 3a+2b=5c.

Answer» Find the value of 27a^3+8b^3-125c^3 given that abc=0 and 3a+2b=5c.
5184.

Question 1116 glass spheres each of radius 2 cm are packed into a cuboidal box of internal dimensions 16cm×8 cm×8 cm and then the box is filled with water. Find the volume of water filled in the box

Answer» Question 11

16 glass spheres each of radius 2 cm are packed into a cuboidal box of internal dimensions 16cm×8 cm×8 cm and then the box is filled with water. Find the volume of water filled in the box
5185.

Please give study tips ands tricks

Answer»

Please give study tips ands tricks

5186.

Look at the histogram given below and answer the question that follow:(i) How many students have height more than or equal to 135 cm but less than 150 cm?(ii) Which class interval has the least number of students?(iii) What is the class size?(iv) How many students have height less than 140 cm?

Answer» Look at the histogram given below and answer the question that follow:



(i) How many students have height more than or equal to 135 cm but less than 150 cm?

(ii) Which class interval has the least number of students?

(iii) What is the class size?

(iv) How many students have height less than 140 cm?
5187.

Divide 12x2yz by 3xy.

Answer»

Divide 12x2yz by 3xy.

5188.

In an examination which has questions of 100 marks, Aamir scores 54 marks while Usha loses 34 marks in her paper. The ratio of the marks of Aamir to that of Usha is same as that of the marks obtained by Preeti and Kunal. If Preeti scored 72 marks, how much did Kunal score?

Answer» In an examination which has questions of 100 marks, Aamir scores 54 marks while Usha loses 34 marks in her paper. The ratio of the marks of Aamir to that of Usha is same as that of the marks obtained by Preeti and Kunal. If Preeti scored 72 marks, how much did Kunal score?
5189.

A line segment UV of length 6 units subtend equal angles at two points A and B lying on the same side of the line segment. A perpendicular of length 4 units is dropped on the line segment from a fixed point whose distances from points A,B,U &amp; V are same. Find the sum of distance of the points A and B from the fixed point.

Answer»

A line segment UV of length 6 units subtend equal angles at two points A and B lying on the same side of the line segment. A perpendicular of length 4 units is dropped on the line segment from a fixed point whose distances from points A,B,U & V are same. Find the sum of distance of the points A and B from the fixed point.

5190.

D, E, F are respectively the mid points of the sides BC, CA, AB of triangle ABC. Then CEFD is a ____________

Answer»

D, E, F are respectively the mid points of the sides BC, CA, AB of triangle ABC. Then CEFD is a ____________


5191.

28. Draw a line ab draw a line parallel to AB at following distance from it: a )4.5 cm

Answer» 28. Draw a line ab draw a line parallel to AB at following distance from it: a )4.5 cm
5192.

It would take ___ steps to arrive at 0 from 256 by repeated subtraction method of odd numbers to find its square root.

Answer»

It would take ___ steps to arrive at 0 from 256 by repeated subtraction method of odd numbers to find its square root.

5193.

Construct a quadrilateral NEWS in which NE = 7 cm, EW = 6 cm, ∠N=60∘,∠E=110∘ and ∠S=85∘.

Answer» Construct a quadrilateral NEWS in which NE = 7 cm, EW = 6 cm, N=60,E=110 and S=85.
5194.

Any two digit number can be represented as ___x + y

Answer»

Any two digit number can be represented as

___x + y
5195.

Find the product of (t+s2) and (t2−s).

Answer»

Find the product of (t+s2) and (t2s).



5196.

The histogram below represents marks of students in a Mathematics exam with passing marks as 30. How many students failed in the exam?

Answer»

The histogram below represents marks of students in a Mathematics exam with passing marks as 30. How many students failed in the exam?


5197.

Four alternative options are given for each of the following statements. Select the correct option.If n = 10 and Mean = 12, then ∑fx is:A. 120B. 1200C. 12D. 13

Answer»

Four alternative options are given for each of the following statements. Select the correct option.



If n = 10 and Mean = 12, then fx is:



A. 120



B. 1200



C. 12



D. 13



5198.

Complétez par en ou dans.

Answer» Complétez par en ou dans.
5199.

Express 73 as a sum of 7 consecutive odd number.

Answer»

Express 73 as a sum of 7 consecutive odd number.


5200.

Simplify the following √5.0625+√506.25

Answer»

Simplify the following

√5.0625+√506.25