Questions by Arun

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The perimeter of a rectangle becomes __________ times its original perimeter, if its length and breadth are

asked Jan 17, 2022 in 8th-maths

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Opposite faces of a cuboid are _________ in

asked Jan 17, 2022 in 8th-maths

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Two cylinders A and B are formed by folding a rectangular sheet of dimensions `20 cm xx 10 cm` along its length and also along its breadth respectively. Then volume of A is ________ of volume of

asked Jan 17, 2022 in 8th-maths

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__________ surface area of room = area of 4

asked Jan 17, 2022 in 8th-maths

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Find the area of the shaded portion in the following

asked Jan 17, 2022 in 8th-maths

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asked Jan 17, 2022 in 8th-maths

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Three cubes each of side 10 cm are joined end to end. Find the surface area of the resultant

asked Jan 17, 2022 in 8th-maths

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Below are the drawings of cross sections of two different pipes used to fill swimming pools. Figure A is a combination of 2 pipes each having a radius of 8 cm. Figure B is a pipe having a radius of 15 cm. If the force of the flow of water coming out of the pipes is the same in both the cases, which will fill the swimming pool faster?

asked Jan 17, 2022 in 8th-maths

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What will happen to the volume of the cube, if its edge is (a) tripled (b) reduced to

asked Jan 17, 2022 in 8th-maths

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 – 3x +

asked Jan 17, 2022 in 8th-maths

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The cost of a chocolate is Rs (x + y) and Rohit bought (x + y) chocolates. Find the total amount paid by him in terms of x. If x = 10, find the amount paid by

asked Jan 17, 2022 in 8th-maths

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If p + q = 12 and pq = 22, then find `p^2 +

asked Jan 17, 2022 in 8th-maths

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If `x-1/x=7` then find the value of

asked Jan 17, 2022 in 8th-maths

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The figure shows the dimensions of a wall having a window and a door of a room. Write an algebraic expression for the area of the wall to be painted.

asked Jan 17, 2022 in 8th-maths

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The distance between earth and sun is 150 million kilometres which can be written in exponential form as

asked Jan 17, 2022 in 8th-maths

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`(–10) xx (–10) xx (–10) xx (–10) =

asked Jan 17, 2022 in 8th-maths

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`3^(–2)` can be written

asked Jan 17, 2022 in 8th-maths

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The value of `(2/5)^-2`

asked Jan 17, 2022 in 8th-maths

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The value of `(-2/3)^4` is equal

asked Jan 17, 2022 in 8th-maths

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If y be any non-zero integer, then `y^0` is equal

asked Jan 17, 2022 in 8th-maths

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