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

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Sobi types 108 words in 6 minutes. How many words would she type in half an

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

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

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It is given that l varies directly as m. (i) Write an equation which relates l and m. (ii) Find the constant of proportion (k), when l is 6 then m is

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

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If a deposit of Rs 2,000 earns an interest of Rs 500 in 3 years, how much interest would a deposit of Rs 36,000 earn in 3 years with the same rate of simple

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

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

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Find the values of x and y if a and b are in inverse proportion: a. 12 x 8 b. 30 5

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

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

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

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

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From the following table, determine if x and y are in direct proportion or not. x 3 6 15 20 30 y 12 24 45 60 120

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

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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 18, 2022 in 8th-maths by sumit (1.6k points)

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From the following table, determine if x and y are in direct proportion or not. x 1 4 9 20 y 1.5 6 13.5 20

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

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If a and b vary inversely to each other, then find the values of p, q, r ; x, y, z and l, m, n. a 6 8 q 25 b 18 p 39 r

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

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If a and b vary inversely to each other, then find the values of p, q, r ; x, y, z and l, m, n. a 2 y 6 10 b x 12.5 15 z

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

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If a and b vary inversely to each other, then find the values of p, q, r ; x, y, z and l, m, n. a l 9 n 6 b 5 m 25 10

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

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

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A swimming pool can be filled in 4 hours by 8 pumps of the same type. How many such pumps are required if the pool is to be filled in `2 2/3`

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

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The cost of 27 kg of iron is Rs 1,080, what will be the cost of 120 kg of iron of the same

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

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

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In a hostel of 50 girls, there are food provisions for 40 days. If 30 more girls join the hostel, how long will these provisions

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

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