Recent questions in Class 7

Find the value of y from equation (y - 3)^2 - (y + 1)^2 = -64

asked Oct 14, 2015 by pady_1

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The number of days left in the month of September are five times of the number of days already passed. How many days are left in the month ?

asked Oct 14, 2015 by pady_1

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The length of a rectangular hall is 10 meter less than 4 time of width. If breadth is b meters, what is the length?

asked Oct 14, 2015 by pady_1

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Find the value of ( -7p^2 - p + 6) + (9p^2 + 3p + 4), when p = 0.

asked Oct 14, 2015 by pady_1

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Aamir transfers apples from one larger box to smaller boxes. When the larger box is emptied, apples fill 3 smaller boxes and still 6 apples remained outside. If the number of apples in each smaller box is q, what was the number of apples in the larger box?

asked Oct 14, 2015 by pady_1

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If 2x + 1 = 7, what is the value of 2x - 1?

asked Oct 14, 2015 by pady_1

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If * be an operation such that ab = ab + (a+b)(a-b), then 47 equals ________

asked Oct 14, 2015 by pady_1

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Find the value of 100 - 10x^3 for x = 2.

asked Oct 14, 2015 by pady_1

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What should be the value of a if the value of 2x2 + x – a equals to 5, when x = 0?

asked Oct 14, 2015 by pady_1

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Find the value a^2 + 2ab + b^2 for a = 3, b = 2.

asked Oct 14, 2015 by pady_1

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Get the algebraic expressions using variables, constants and arithmetic operations. One- fourth of the sum of numbers m and n

asked Oct 14, 2015 by pady_1

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From the sum of 4 + 3x and 5 – 4x + 2x^2, subtract the sum of 3x^2 – 5x and –x^2 + 2x + 5.

asked Oct 14, 2015 by pady_1

1 answer

Simplify the expressions and find the value if x is equal to 2. x + 7 + 4 (x – 5)

asked Oct 14, 2015 by pady_1

1 answer

Find the value of the following expressions for a= 3, b= 2. a^2 + 2ab + b^2

asked Oct 14, 2015 by pady_1

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What should be added to x^2 + xy to obtain 5x^2 - xy?

asked Oct 14, 2015 by pady_1

1 answer

What should be subtracted from 2a + 8b + 10 to get – 3a + 7b + 16?

asked Oct 14, 2015 by pady_1

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From the sum of 2y^2 + 3yz, – y^2 – yz – z^2 and yz + 2z^2, subtract the sum of 3y^2 – z^2 and –y^2+ yz + z^2

asked Oct 14, 2015 by pady_1

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State whether a given pair of terms is of like or unlike terms. 4m^2p, 4mp^2

asked Oct 14, 2015 by pady_1

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From the sum of 2y^2 + 3yz, - y^2 - yz – z^2 and yz + 2z^2, subtract the sum of 3y^2 – z^2 and – y^2 + yz + z^2.

asked Oct 14, 2015 by pady_1

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Get the algebraic expressions using variables, constants and arithmetic operations. The number x multiplied by itself

asked Oct 14, 2015 by pady_1

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Subtract a – b from 3a – b + 4.

asked Oct 14, 2015 by pady_1

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when a = 0, b = – 1, find the value of the expressions: 2a^2b + 2ab^2 + ab

asked Oct 14, 2015 by pady_1

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A rectangular garden is 65 m long and 50 m wide. Two cross paths each 2 m wide are to be constructed parallel to the sides. If these paths pass through the centre of the garden, find the cost of constructing the paths at the rate Rs. 69 per $m^2$.

asked Oct 14, 2015 by pady_1

1 answer

The area of a square and a rectangle are equal. If the side of the square is 40 cm and the breadth of the rectangle is 25 cm, find the perimeter of the rectangle.

asked Oct 14, 2015 by pady_1

1 answer

A rectangular garden is 90 m long and 75 m broad. A path 5 m wide is to be built out around it. Find the area of the path.

asked Oct 14, 2015 by pady_1

1 answer

If the area of a rectangular plot of land is $440 m^2$ and the length is 22 m. Find its perimeter.

asked Oct 14, 2015 by pady_1

1 answer

Find the area of a circle of radius 15 cm.

asked Oct 14, 2015 by pady_1

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A door frame of dimensions $4m \times 5m$ is fixed on the wall of dimension $11m \times 11m$. Find the total labour charges for painting the wall if the labour charges for painting $1m^2$ of the wall is $Rs 2.50.$

asked Oct 14, 2015 by pady_1

1 answer

The length & breadth of a rectangle are 23 cm & 11 cm respectively. Find he area of the triangles formed by joining one of its diagonals.

asked Oct 14, 2015 by pady_1

1 answer

The length and breadth of a rectangular field is 10 cm and 6 cm respectively. What will be its area?

asked Oct 14, 2015 by pady_1

1 answer

A rectangle’s length is $(2x + 1)\; cm$ and its width is $(2x – 1)\;cm$. If its area is $15 cm^2,$ find the value of x?

asked Oct 14, 2015 by pady_1

1 answer

The side of a square is 4 cm. Find the area of the triangles formed by joining all of its diagonals.

asked Oct 14, 2015 by pady_1

1 answer

A rectangular field has dimensions 84 m by 37 m. What will be the cost of digging the entire field at the cost of Rs $15/m^2$.

asked Oct 14, 2015 by pady_1

1 answer

A rectangle has a length of 6 cm and diagonal 10 cm, find the width of the rectangle?

asked Oct 14, 2015 by pady_1

0 answers

A rectangle has a length that is 2 less than 3 times the width. If the area of the rectangle is $16\; cm^2,$ find the dimensions.

asked Oct 14, 2015 by pady_1

1 answer

How many times a wheel of radius 28 cm must rotate to go 352 m?

asked Oct 14, 2015 by pady_1

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A boy walks 5 times around a park. If the size of the park is 100m by 50m, find the distance the boy has walked.

asked Oct 14, 2015 by pady_1

1 answer

Find the area of a circle if its radius is 7 cm

asked Oct 14, 2015 by pady_1

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The radius of a circle is 7 cm. The circle is divided into two equal parts. What is the perimeter of each semi circular part?

asked Oct 14, 2015 by pady_1

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The diameter of a circle is 28 cm. Find its area.

asked Oct 14, 2015 by pady_1

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If the circumferance of a circular sheet is 154 cm, find its diameter.

asked Oct 14, 2015 by pady_1

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Find the circumference of a wheel whose radius is 21 cm. Also find the distance coveredby it in 10 revolution

asked Oct 14, 2015 by pady_1

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If the ratio of the diameter of two circles is 2 : 5, find the ratio of their circumference.

asked Oct 14, 2015 by pady_1

1 answer

The diameter of a car’s tyre is 70 cm. Find the distance covered by it in 5 revolution.

asked Oct 14, 2015 by pady_1

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The circumference of a circle is 31.4 cm. Find its radius.

asked Oct 14, 2015 by pady_1

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If the area of a circle is 154 cm^2, find its radius.

asked Oct 14, 2015 by pady_1

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A person starts walking around a square field and in reaching back to the starting place he travels $3496\; m$. Find the side of the square field.

asked Oct 14, 2015 by pady_1

1 answer

Calculate the breadth of the rectangle whose length and breadth are in the ratio 5 :7 and perimeter is 120 m.

asked Oct 14, 2015 by pady_1

1 answer

A piece of wire is 40 cm long. It is bent in the form of a square. Find its sides.

asked Oct 14, 2015 by pady_1

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A horse is tied with a rope in the centre of a square field of side 30 m. If the lengthof the rope is 14 m. Find the area of the field where the horse cannot graze.

asked Oct 14, 2015 by pady_1

1 answer

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