Questions by purvi

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Four times a number is a _________ % increase in the

asked Jan 17, 2022 in 8th-maths

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The buying price of 5 kg of flour with the rate Rs 20 per kg, when 5% ST is added on the purchase is Rs

asked Jan 17, 2022 in 8th-maths

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Find the M.P. if (a) S.P. = Rs 495 and discount = 1% (b) S.P. = Rs 9,250 and discount = `7

asked Jan 17, 2022 in 8th-maths

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The population of a town was decreasing every year due to migration, poverty and unemployment. The present population of the town is 6,31,680. Last year the migration was 4% and the year before last, it was 6%. What was the population two years

asked Jan 17, 2022 in 8th-maths

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Achal bought a second-hand car for Rs 2,25,000 and spend Rs 25,000 for repairing. If he sold it for Rs 3,25,000, what is his profit per

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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The number of teeth and the age of a person

asked Jan 17, 2022 in 8th-maths

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Which quantities in the previous question vary inversely with each

asked Jan 17, 2022 in 8th-maths

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Two quantities are said to vary ______ with each other if an increase in one causes a decrease in the other in such a manner that the product of their corresponding values remains

asked Jan 17, 2022 in 8th-maths

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If x varies directly as y, then x 12 6 y 48

asked Jan 17, 2022 in 8th-maths

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An auto rickshaw takes 3 hours to cover a distance of 36 km. If its speed is increased by 4 km/h, the time taken by it to cover the same distance is

asked Jan 17, 2022 in 8th-maths

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If the thickness of a pile of 12 cardboard sheets is 45 mm, then the thickness of a pile of 240 sheets is _______

asked Jan 17, 2022 in 8th-maths

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When the speed is kept fixed, time and distance vary inversely with each

asked Jan 17, 2022 in 8th-maths

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When the distance is kept fixed, speed and time vary directly with each

asked Jan 17, 2022 in 8th-maths

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When two quantities are related in such a manner that if one increases and the other decreases, then they always vary

asked Jan 17, 2022 in 8th-maths

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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 17, 2022 in 8th-maths

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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 17, 2022 in 8th-maths

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Campus and Welfare Committee of school is planning to develop a blue shade for painting the entire school building. For this purpose various shades are tried by mixing containers of blue paint and white paint. In each of the following mixtures, decide which is a lighter shade of blue and also find the lightest blue shade among all of them. If one container has one litre paint and the building requires 105 litres for painting, how many container of each type is required to paint the building by darkest blue

asked Jan 17, 2022 in 8th-maths

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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 17, 2022 in 8th-maths

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