Questions by Simran

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

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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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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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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For calculation of interest compounded half yearly, keeping the principal same, which one of the following is

asked Jan 17, 2022 in 8th-maths

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_________ is charged on the sale of an item by the government and is added to the bill

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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Sales tax is always calculated on the cost price of an item and is added to the value of the

asked Jan 17, 2022 in 8th-maths

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A student used the proportion `n/100 = 5/32`to find 5% of 32. What did the student do

asked Jan 17, 2022 in 8th-maths

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Side of a rhombus and its perimeter are in ______

asked Jan 17, 2022 in 8th-maths

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100 persons had food provision for 24 days. If 20 persons left the place, the provision will last

asked Jan 17, 2022 in 8th-maths

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Two quantities are said to vary ______ with each other if an increase in one causes a decrease in the other in such a manner that the product of their corresponding values remains

asked Jan 17, 2022 in 8th-maths

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On increasing a, b increases in such a manner that `b/a` remains______ and positive, then a and b are said to vary directly with each

asked Jan 17, 2022 in 8th-maths

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If two quantities x and y vary directly with each other, then ______ of their corresponding values remains

asked Jan 17, 2022 in 8th-maths

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l varies directly as m and l is equal to 5, when m = `2/3` . Find l when m = `16/3`

asked Jan 17, 2022 in 8th-maths

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A car travels a distance of 225 km in 25 litres of petrol. How many litres of petrol will be required to cover a distance of 540 kilometres by this

asked Jan 17, 2022 in 8th-maths

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Campus and Welfare Committee of school is planning to develop a blue shade for painting the entire school building. For this purpose various shades are tried by mixing containers of blue paint and white paint. In each of the following mixtures, decide which is a lighter shade of blue and also find the lightest blue shade among all of them. If one container has one litre paint and the building requires 105 litres for painting, how many container of each type is required to paint the building by darkest blue

asked Jan 17, 2022 in 8th-maths

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44 cows can graze a field in 9 days. How many less/more cows will graze the same field in 12

asked Jan 17, 2022 in 8th-maths

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There are 20 grams of protein in 75 grams of sauted fish. How many grams of protein is in 225 gm of that

asked Jan 17, 2022 in 8th-maths

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Three cubes of metal whose edges are 6 cm, 8 cm and 10 cm respectively are melted to form a single cube. The edge of the new cube

asked Jan 17, 2022 in 8th-maths

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