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An inch is approximately equal to 0.02543 metres. Write this distance in standard

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

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While studying her family’s history. Shikha discovers records of ancestors 12 generations back. She wonders how many ancestors she has had in the past 12 generations. She starts to make a diagram to help her figure this out. The diagram soon becomes very complex. (a) Make a table and a graph showing the number of ancestors in each of the 12

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

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About 230 billion litres of water flows through a river each day. How many litres of water flows through that river in a week? How many litres of water flows through the river in an year? Write your answer in standard

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

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Fill in the blanks

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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There are 864,00 seconds in a day. How many days long is a second? Express your answer in scientific

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

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Repeater Machine Similarly, repeater machine is a hypothetical machine which automatically enlarges items several times. For example, sending a piece of wire through a `(xx 2^4)` machine is the same as putting it through a (xx 2) machine four times. So, if you send a 3 cm piece of wire through a `(xx 2^4)` machine, its length becomes `3 xx 2 xx 2 xx 2 xx 2 = 48` cm. It can also be written that a base (2) machine is being applied 4 times. What will be the new length of a 4 cm strip inserted in

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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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 17, 2022 in 8th-maths by vaibhav (1.7k points)

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By what number should `(–8)^(–3)` be multiplied so that that the product may be equal to

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

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Simplify: `((3^-2)^2 xx (5^2)-3 xx (t^(-3))^2)/((3^(-2))^5 xx (5^3)^(-2) xx

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

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C.P. = M.P. –

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k points)

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A man purchased a bicycle for Rs 1,040 and sold it for Rs 800. His gain per cent is

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Simple interest on a given amount is always less than or equal to the compound interest on the same amount for the same time period and at the same rate of interest per

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

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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 by purvi (1.8k points)

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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 by krutika (1.7k points)

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Ashima sold two coolers for Rs 3,990 each. On selling one cooler she gained 5% and on selling the the other she suffered a loss of 5%. Find her overall gain or loss % in whole

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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Below is the Report Card of Vidit Atrey. Vidit’s teacher left the last column blank. Vidit is not able to make out, in which subject he performed better and in which he needs improvement. Complete the table to help Vidit know his comparative performance.

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

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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 by purvi (1.8k points)

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If a tree 24 m high casts a shadow of 15 m, then the height of a pole that casts a shadow of 6 m under similar conditions is 9.6

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

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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 by vaibhav (1.7k points)

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