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30 persons can reap a field in 17 days. How many more persons should be engaged to reap the same field in 10

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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Ravi starts for his school at 8:20 a.m. on his bicycle. If he travels at a speed of 10km/h, then he reaches his school late by 8 minutes but on travelling at 16 km/h he reaches the school 10 minutes early. At what time does the school

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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There are 20 grams of protein in 75 grams of sauted fish. How many grams of protein is in 225 gm of that

asked Jan 18, 2022 in 8th-maths by uday (1.6k points)

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A water tank casts a shadow 21 m long. A tree of height 9.5 m casts a shadow 8 m long at the same time. The lengths of the shadows are directly proprotional to their heights. Find the height of the tank

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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The variable x is inversely proportional to y. If x increases by p%, then by what per cent will y

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Kusum always forgets how to convert miles to kilometres and back again. However she remembers that her car’s speedometer shows both miles and kilometres. She knows that travelling 50 miles per hour is same as travelling 80 kilometres per hour. To cover a distance of 200 km, how many miles Kusum would have to

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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Area of a rhombus is equal to __________ of its

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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A cube of side 4 cm is cut into 1 cm cubes. What is the ratio of the surface areas of the original cubes and cut-out

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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The volume of a cube is 64 `cm^3`. Its surface area

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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The volume of a cylinder whose radius r is equal to its height

asked Jan 18, 2022 in 8th-maths by nishit (1.8k points)

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The volume of a cube whose edge is 3x

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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If R is the radius of the base of the hat, then the total outer surface area of the hat is

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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The surface area of a cylinder which exactly fits in a cube of side b is

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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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 18, 2022 in 8th-maths by vaibhav (1.7k points)

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__________ of a solid is the measurement of the space occupied by

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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Two cylinders of equal volume have heights in the ratio 1:9. The ratio of their radii is

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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A cube of side 3 cm painted on all its faces, when sliced into 1 cubic centimetre cubes, will have exactly 1 cube with none of its faces

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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The surface area of a cube formed by cutting a cuboid of dimensions `2 xx 1 xx 1 in 2` equal parts is 2 sq.

asked Jan 18, 2022 in 8th-maths by nishit (1.8k points)

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The area of a rectangular field is 48 `m^2` and one of its sides is 6m. How long will a lady take to cross the field diagonally at the rate of 20

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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The areas of two circles are in the ratio 49:64. Find the ratio of their

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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