Questions by nikhil

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Kritika ordered one pizza and one garlic bread from a pizza store and paid Rs 387 inclusive of taxes of Rs 43. Find the

asked Jan 17, 2022 in 8th-maths

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On selling a chair for Rs 736, a shopkeeper suffers a loss of 8%. At what price should he sell it so as to gain

asked Jan 17, 2022 in 8th-maths

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A lady bought an air-conditioner for Rs 15,200 and spent Rs 300 and Rs 500 on its transportation and repair respectively. At what price should she sell it to make a gain of

asked Jan 17, 2022 in 8th-maths

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For an amount, explain why, a 20% increase followed by a 20% decrease is less than the original

asked Jan 17, 2022 in 8th-maths

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If x and y are directly proportional and when x = 13, y = 39, which of the following is not a possible pair of corresponding values of x and y

asked Jan 17, 2022 in 8th-maths

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If two quantities p and q vary inversely with each other then ______ of their corresponding values remains

asked Jan 17, 2022 in 8th-maths

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If p and q are in inverse variation then (p + 2) and (q – 2) are also in inverse

asked Jan 17, 2022 in 8th-maths

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A contractor undertook a contract to complete a part of a stadium in 9 months with a team of 560 persons. Later on, it was required to complete the job in 5 months. How many extra persons should he employ to complete the

asked Jan 17, 2022 in 8th-maths

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A car covers a distance in 40 minutes with an average speed of 60 km/h. What should be the average speed to cover the same distance in 25

asked Jan 17, 2022 in 8th-maths

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The mass of an aluminium rod varies directly with its length. If a 16 cm long rod has a mass of 192 g, find the length of the rod whose mass is 105

asked Jan 17, 2022 in 8th-maths

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If Naresh walks 250 steps to cover a distance of 200 metres, find the distance travelled in 350

asked Jan 17, 2022 in 8th-maths

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From the following table, determine if x and y are in direct proportion or not. x 4 7 10 16 y 24 42 60 96

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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Amount of region occupied by a solid is called its surface

asked Jan 17, 2022 in 8th-maths

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160 `m^3` of water is to be used to irrigate a rectangular field whose area is 800 `m^2`. What will be the height of the water level in the

asked Jan 17, 2022 in 8th-maths

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What is the area of the largest triangle that can be fitted into a rectangle of length l units and width w

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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How many small cubes with edge of 20 cm each can be just accommodated in a cubical box of 2 m

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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The surface area of a cuboid formed by joining two cubes of side a face to face is

asked Jan 17, 2022 in 8th-maths

Questions by nikhil

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