Questions by yogita

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In a repeater machine with 0 as an exponent, the base machine is applied 0 times. (a) What do these machines do to a piece of chalk? (b) What do you think the value of 60

asked Jan 18, 2022 in 8th-maths

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Find a single repeater machine that will do the same work as each hook-up. (a) (b) (c) (d) (e) (f)

asked Jan 18, 2022 in 8th-maths

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Find two repeater machines that will do the same work as a `(xx 81)`

asked Jan 18, 2022 in 8th-maths

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The left column of the chart lists the lengths of input pieces of ribbon. Stretching machines are listed across the top. The other entries are the outputs for sending the input ribbon from that row through the machine from that column. Copy and complete the chart.

asked Jan 18, 2022 in 8th-maths

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Express each of the following in exponential form: (1) `(-1296)/14641` (2) `(-125/343)` (3) `400/3969` (4)

asked Jan 18, 2022 in 8th-maths

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If a % is the discount per cent on a marked price x, then discount

asked Jan 18, 2022 in 8th-maths

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Ashima took a loan of Rs 1,00,000 at 12% p.a. compounded half yearly. She paid Rs 1,12,360. If (1.06)2 is equal to 1.1236, then the period for which she took the loan

asked Jan 18, 2022 in 8th-maths

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Sales tax = tax % of

asked Jan 18, 2022 in 8th-maths

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Additional expenses made after buying an article are included in the cost price and are known as Value Added

asked Jan 18, 2022 in 8th-maths

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Three times a number is 200% increase in the number, then one-third of the same number is 200% decrease in the

asked Jan 18, 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 18, 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 18, 2022 in 8th-maths

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The marked price of an article is Rs 500. The shopkeeper gives a discount of 5% and still makes a profit of 25%. Find the cost price of the

asked Jan 18, 2022 in 8th-maths

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Lemons were bought at Rs 48 per dozen and sold at the rate of Rs 40 per 10. Find the gain or loss per

asked Jan 18, 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 18, 2022 in 8th-maths

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Under the condition that the temperature remains constant, the volume of gas is inversely proportional to its pressure. If the volume of gas is 630 cubic centimetres at a pressure of 360 mm of mercury, then what will be the pressure of the gas if its volume is 720 cubic centimetres at the same

asked Jan 18, 2022 in 8th-maths

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The number of teeth and the age of a person

asked Jan 18, 2022 in 8th-maths

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Both x and y are in direct proportion, then `1/x` and `1/y`

asked Jan 18, 2022 in 8th-maths

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If two quantities p and q vary inversely with each other,

asked Jan 18, 2022 in 8th-maths

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Both x and y vary directly with each other and when x is 10, y is 14, which of the following is not a possible pair of corresponding values of x and

asked Jan 18, 2022 in 8th-maths

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