Questions by Simran

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Find the smallest number by which each of the following numbers must be divided to obtain a perfect cube. 81

asked Jan 18, 2022 in 8th-maths

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Find the cube root of each of the following numbers by prime factorisation method. 64

asked Jan 18, 2022 in 8th-maths

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Find the cube root of each of the following numbers by prime factorisation method.

asked Jan 18, 2022 in 8th-maths

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State true or false. The cube of a single digit number may be a single digit

asked Jan 18, 2022 in 8th-maths

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Find the ratio of the following. 5 m to 10 km

asked Jan 18, 2022 in 8th-maths

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The cost of an article was Rs 15,500. Rs 450 were spent on its repairs. If it is sold for a profit of 15%, find the selling price of the

asked Jan 18, 2022 in 8th-maths

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A sum of Rs 10,000 is borrowed at a rate of interest 15% per annum for 2 years. Find the simple interest on this sum and the amount to be paid at the end of 2

asked Jan 18, 2022 in 8th-maths

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Calculate the amount and compound interest on Rs 18,000 for `2 1/2` years at 10% per annum compounded

asked Jan 18, 2022 in 8th-maths

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Maria invested Rs 8,000 in a business. She would be paid interest at 5% per annum compounded annually. Find The amount credited against her name at the end of the second

asked Jan 18, 2022 in 8th-maths

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Find the amount and the compound interest on Rs 10,000 for `1 1/2` years at 10% per annum, compounded half yearly. Would this interest be more than the interest he would get if it was compounded

asked Jan 18, 2022 in 8th-maths

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Find the amount which Ram will get on Rs 4096, if he gave it for 18 months at `12 1/2 %` per annum, interest being compounded half

asked Jan 18, 2022 in 8th-maths

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Add: 7xy + 5yz – 3zx, 4yz + 9zx – 4y , –3xz + 5x –

asked Jan 18, 2022 in 8th-maths

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Subtract `4p^2q – 3pq + 5pq^2 – 8p + 7q – 10` from `18 – 3p – 11q + 5pq – 2pq^2 +

asked Jan 18, 2022 in 8th-maths

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Find the product of the following pairs of monomials. `4p^3, –

asked Jan 18, 2022 in 8th-maths

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Find the areas of rectangles with the following pairs of monomials as their lengths and breadths respectively.`(p, q); (10m, 5n); (20x^2, 5y^2); (4x, 3x^2); (3mn,

asked Jan 18, 2022 in 8th-maths

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Obtain the volume of rectangular boxes with the following length, breadth and heightrespectively. `5a, 3a^2,

asked Jan 18, 2022 in 8th-maths

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Obtain the product of xy, yz, zx

asked Jan 18, 2022 in 8th-maths

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Obtain the product of a, 2b, 3c, 6abc

asked Jan 18, 2022 in 8th-maths

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- Simplify `a (a^2 + a + 1) + 5` and find its value for (i) a = 0, (ii) a = 1 (iii) a = –

asked Jan 18, 2022 in 8th-maths

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Simplify. `(x^2 – 5) (x + 5) + 25`

asked Jan 18, 2022 in 8th-maths

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