Questions by nikhil

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Simplify: -1. `(2^5 -: 28) xx

asked Jan 17, 2022 in 8th-maths

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Divide 293 by 10,00,000 and express the result in standard

asked Jan 17, 2022 in 8th-maths

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Pluto is 59,1,30,00, 000 m from the sun. Express this in the standard

asked Jan 17, 2022 in 8th-maths

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Express each of the following in standard form: -1. (a) The mass of a proton in gram is `1673/1000000000000000000000000000` (b) A Helium atom has a diameter of 0.000000022

asked Jan 17, 2022 in 8th-maths

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Predicting the ones digit, copy and complete this table and answer the questions that follow. (a) Describe patterns you see in the ones digits of the

asked Jan 17, 2022 in 8th-maths

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Fill in the blanks

asked Jan 17, 2022 in 8th-maths

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The given table shows the crop production of a State in the year 2008 and 2009. Observe the table given below and answer the given questions. Crop 2008 Harvest (Hectare) Increase/Decrease (Hectare) in 2009 Bajra `1.4 × 10^3` – 100 Jowar `1.7 × 10^6` -440,000 Rice `3.7 × 10^3` – 100 Wheat `5.1 × 10^5` + 190,000 (a) For which crop(s) did the production decrease? (b) Write the production of all the crops in 2009 in their standard form. (c) Assuming the same

asked Jan 17, 2022 in 8th-maths

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The distance between the Sun and the Earth is `1.496 xx 10^8` km and distance between the Earth and the Moon is `3.84 xx 10^8` m. During solar eclipse the Moon comes in between the Earth and the Sun. What is distance between the Moon and the Sun at that particular

asked Jan 17, 2022 in 8th-maths

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Find x -1. (1) `-(1/7)^(-5) -: -(1/7)^(-7) = (-7)^x` (2) `(2/5)^(2x+6) xx (2/5)^3 =

asked Jan 17, 2022 in 8th-maths

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The discount per cent is calculated on the _________ price of an

asked Jan 17, 2022 in 8th-maths

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Amna purchased a toy for Rs 660 including sales tax. If the rate of sales tax is 10%, then the selling price of the toy is

asked Jan 17, 2022 in 8th-maths

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Arnav buys a book costing Rs 600. If the rate of sales tax is 7%, then the total amount payable by him is Rs

asked Jan 17, 2022 in 8th-maths

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Suppose a certain sum doubles in 2 years at r % rate of simple interest per annum or at R% rate of interest per annum compounded annually. We

asked Jan 17, 2022 in 8th-maths

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The compound interest on Rs 50,000 at 4% per annum for 2 years compounded annually

asked Jan 17, 2022 in 8th-maths

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If marked price of an article is Rs 1,200 and the discount is 12% then the selling price of the article

asked Jan 17, 2022 in 8th-maths

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Discount = _________ –

asked Jan 17, 2022 in 8th-maths

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Amount when interest is compounded annually is given by the formula

asked Jan 17, 2022 in 8th-maths

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Sales tax = tax % of

asked Jan 17, 2022 in 8th-maths

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Percentages are _________ to fractions with _________ equal to

asked Jan 17, 2022 in 8th-maths

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The cost price of 10 tables is equal to the sale price of 5 tables. The profit per cent in this transaction is

asked Jan 17, 2022 in 8th-maths

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