Questions by sumit

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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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The planet Uranus is approximately 2,896,819,200,000 metres away from the Sun. What is this distance in standard

asked Jan 17, 2022 in 8th-maths

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If possible, find a hook-up of prime base number machine that will do the same work as the given stretching machine. Do not use `(xx 1)` machines.

asked Jan 17, 2022 in 8th-maths

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

asked Jan 17, 2022 in 8th-maths

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Find three machines that can be replaced with hook-ups of `(xx 5)`

asked Jan 17, 2022 in 8th-maths

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Simplify: `((9) xx 27 xx t^4)/((3)^(-2) xx (3)^4 xx

asked Jan 17, 2022 in 8th-maths

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When the interest is compounded half yearly, the number of conversion periods in a year is

asked Jan 17, 2022 in 8th-maths

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A number is increased by 20% and then it is decreased by 20%. Find the net increase or decrease per

asked Jan 17, 2022 in 8th-maths

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A TV set was bought for Rs 26,250 including 5% VAT. The original price of the TV set

asked Jan 17, 2022 in 8th-maths

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_________ is a reduction on the marked price of the

asked Jan 17, 2022 in 8th-maths

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Discount = Discount % of

asked Jan 17, 2022 in 8th-maths

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The cost of a tape-recorder is Rs 10,800 inclusive of sales tax charged at 8%. The price of the tape-recorder before sales tax was charged is

asked Jan 17, 2022 in 8th-maths

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C.P. = M.P. –

asked Jan 17, 2022 in 8th-maths

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Selling price of 9 articles is equal to the cost price of 15 articles. In this transaction there is profit of `66 2/3

asked Jan 17, 2022 in 8th-maths

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The compound interest on a sum of Rs P for T years at R% per annum compounded annually is given by the formula

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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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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Babita bought 160 kg of mangoes at Rs 48 per kg. She sold 70% of the mangoes at Rs 70 per kg and the remaining mangoes at Rs 40 per kg. Find Babita’s gain or loss per cent on the whole

asked Jan 17, 2022 in 8th-maths

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A shopkeeper was selling all his items at 25% discount. During the off season, he offered 30% discount over and above the existing discount. If Pragya bought a skirt which was marked for Rs 1,200, how much did she pay for

asked Jan 17, 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 17, 2022 in 8th-maths

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