Questions by purvi

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Discount = Discount % of

asked Jan 17, 2022 in 8th-maths

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To calculate the growth of a bacteria if the rate of growth is known, the formula for calculation of amount in compound interest can be

asked Jan 17, 2022 in 8th-maths

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Compound interest is the interest calculated on the previous year’s

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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Ayesha announced a festival discount of 25% on all the items in her mobile phone shop. Ramandeep bought a mobile phone for himself. He got a discount of Rs 1,960. What was the marked price of the mobile

asked Jan 17, 2022 in 8th-maths

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Find the difference between Compound Interest and Simple Interest on Rs 45,000 at 12% per annum for 5

asked Jan 17, 2022 in 8th-maths

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If the price of petrol, diesel and LPG is slashed as follows: Fuel Old prices/litre (in Rs) New price/litre (in Rs) % Decrease Petrol / LDiesel / LLPG/14.2kg 45.6232.86304.70 40.6230.86279.70 ______________________________ Complete the above

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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Store A and Store B both charge Rs 750 for a video game. This week the video game is on sale for Rs 600 at Store B and for 25% off at Store A. At which store is the game less

asked Jan 17, 2022 in 8th-maths

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Madhu’s room measures 6m × 3m. Her carpet covers 8m2. What per cent of floor is covered by the

asked Jan 17, 2022 in 8th-maths

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When two quantities x and y are in ______ proportion or vary ______ they are written as `x prop

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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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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If 45 persons can complete a work in 20 days, then the time taken by 75 persons will be ______

asked Jan 17, 2022 in 8th-maths

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If x and y are in direct proportion, then (x – 1) and (y – 1) are also in direct

asked Jan 17, 2022 in 8th-maths

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For fixed time period and rate of interest, the simple interest is directly proportional to the

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 3 6 15 20 30 y 12 24 45 60 120

asked Jan 17, 2022 in 8th-maths

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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 17, 2022 in 8th-maths

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A packet of sweets was distributed among 10 children and each of them received 4 sweets. If it is distributed among 8 children, how many sweets will each child

asked Jan 17, 2022 in 8th-maths

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Pattern B consists of four tiles like pattern A. Write a proportion involving red dots and blue dots in pattern A and B. Are they in direct proportion? If yes, write the constant of proportion.

asked Jan 17, 2022 in 8th-maths

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