Questions by purvi

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Investigating Solar System The table shows the average distance from each planet in our solar system to the sun. (a) Complete the table by expressing the distance from each planet to the Sun in scientific

asked Jan 17, 2022 in 8th-maths

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This table shows the mass of one atom for five chemical elements. Use it to answer the question given. Element Mass of atom (kg) TitaniumLeadSilverLithiumHydrogen `7.95 × 10^(–26)` `3.44 × 10^(–25) ``1.79 × 10^(–25)``1.15 × 10^(–26)``1.674 × 10^(–27) `

asked Jan 17, 2022 in 8th-maths

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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

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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

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Shikha has an order from a golf course designer to put palm trees through a `(xx 2^3)` machine and then through a `(xx 3^3)` machine. She thinks she can do the job with a single repeater machine. What single repeater machine should she use?

asked Jan 17, 2022 in 8th-maths

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Simplify: `(4/13)^4 xx (13/7)^2 xx

asked Jan 17, 2022 in 8th-maths

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If the cost price of 10 shirts is equal to the selling price of 8 shirts, then which of the following is true for the

asked Jan 17, 2022 in 8th-maths

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After allowing a discount of 15% on the marked price of an article, it is sold for Rs 680. The marked price of the article is Rs

asked Jan 17, 2022 in 8th-maths

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Overhead charges, if any, are sometimes included in the cost

asked Jan 17, 2022 in 8th-maths

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If 90% of x is 315 km, then the value of x

asked Jan 17, 2022 in 8th-maths

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A bought a tape recorder for Rs 8,000 and sold it to B. B in turn sold it to C, each earning a profit of 20%. Which of the following is

asked Jan 17, 2022 in 8th-maths

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A sum is taken for two years at 16% p.a. If interest is compounded after every three months, the number of times for which interest is charged in 2 years

asked Jan 17, 2022 in 8th-maths

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The original price of a washing machine which was bought for Rs 13,500 inclusive of 8% VAT

asked Jan 17, 2022 in 8th-maths

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The compound interest on Rs 8,000 for one year at 16% p.a. compounded half yearly is _________, given that `(1.08)^2 =

asked Jan 17, 2022 in 8th-maths

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If amount on the principal of Rs 6,000 is written as 6000 `(1+5/100)^3` and compound interest payable half yearly, then rate of interest p.a. is _________ and time in years is

asked Jan 17, 2022 in 8th-maths

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2500 is greater than 500 by

asked Jan 17, 2022 in 8th-maths

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If the discount of Rs y is available on the marked price of Rs x, then the discount percent is `x/y ´100

asked Jan 17, 2022 in 8th-maths

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The original price of a shampoo bottle bought for Rs 324 if 8% VAT is included in the price is Rs

asked Jan 17, 2022 in 8th-maths

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Given the principal = Rs 40,000, rate of interest = 8% p.a. compounded annually. Find (a) Interest if period is one year. (b) Principal for 2nd year. (c) Interest for 2nd year. (d) Amount if period is 2

asked Jan 17, 2022 in 8th-maths

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Prachi bought medicines from a medical store as prescribed by her doctor for Rs 36.40 including 4% VAT. Find the price before VAT was

asked Jan 17, 2022 in 8th-maths

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