Questions by uday

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If 12 pumps can empty a reservoir in 20 hours, then time required by 45 such pumps to empty the same reservoir is ______

asked Jan 17, 2022 in 8th-maths

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Devangi travels 50 m distance in 75 steps, then the distance travelled in 375 steps is _______

asked Jan 17, 2022 in 8th-maths

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A car travels a distance of 225 km in 25 litres of petrol. How many litres of petrol will be required to cover a distance of 540 kilometres by this

asked Jan 17, 2022 in 8th-maths

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If 25 metres of cloth costs Rs 337.50, then (i) What will be the cost of 40 metres of the same type of cloth? (ii) What will be the length of the cloth bought for Rs

asked Jan 17, 2022 in 8th-maths

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At a particular time, the length of the shadow of Qutub Minar whose height is 72 m is 80 m. What will be the height of an electric pole, the length of whose shadow at the same time is 1000

asked Jan 17, 2022 in 8th-maths

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Match each of the entries in Column I with the appropriate entry in Column II Column I Column II 1. x and y vary inversely to each other A. x y = Constant 2. Mathematical representation of inverse B. y will increase in proportion variation of quantities p and q 3. Mathematical representation of C. xy = Constant direct variation of quantities m and n 4. When x = 5, y = 2.5 and when D. p ∝ 1 q y = 5, x = 10

asked Jan 17, 2022 in 8th-maths

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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 17, 2022 in 8th-maths

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A volleyball court is in a rectangular shape and its dimensions are directly proportional to the dimensions of the swimming pool given below. Find the width of the pool.

asked Jan 17, 2022 in 8th-maths

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Kritika is following this recipe for bread. She realises her sister used most of sugar syrup for her breakfast. Kritika has only `1/6` cup of syrup, so she decides to make a small size of bread. How much of each ingredient shall she use? Bread recipe 1 cup quick cooking oats 2 cups bread flour `1/3` cup sugar syrup 1 tablespoon cooking oil `1 1/3` cups water 3 tablespoons yeast 1 teaspoon

asked Jan 17, 2022 in 8th-maths

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1L = 1000

asked Jan 17, 2022 in 8th-maths

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Amount of region occupied by a solid is called its surface

asked Jan 17, 2022 in 8th-maths

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The parallel sides of a trapezium are 40 cm and 20 cm. If its non-parallel sides are both equal, each being 26 cm, find the area of the

asked Jan 17, 2022 in 8th-maths

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

asked Jan 17, 2022 in 8th-maths

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If the radius of a cylinder is tripled but its curved surface area is unchanged, then its height will

asked Jan 17, 2022 in 8th-maths

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The figure ABCD is a quadrilateral in which AB = CD and BC = AD. Its area is

asked Jan 17, 2022 in 8th-maths

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A metal sheet 27 cm long, 8 cm broad and 1 cm thick is melted into a cube. The side of the cube

asked Jan 17, 2022 in 8th-maths

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Ramesh has three

asked Jan 17, 2022 in 8th-maths

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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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Find the perimeter of the given figure.

asked Jan 17, 2022 in 8th-maths

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