Simplify : $\dfrac{0.728×0.728ー0.272×0.272}{0.456}$
IF $\dfrac{x}{y}$=$\dfrac{x}{y}$ then $\dfrac{5x+2y}{5x-2y}$, is equal to |
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A person's present age is two-fifth of the age of his mother. After 8 years, he will be one half of the age of his mother. How old is the mother at present? |
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Find the value of $ \dfrac{1.2×1.2×1.2ー0.2×0.2×0.2} {1.2×1.2+1.2×0.2+0.2×0.2 } $ |
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A bicycle marked at Rs. 1,500 is sold for Rs. 1,350. What is the percentage of discount? |
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Which one of the following is the smallest ratio? |
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In a mixture of 60 litres, the ratio of milk and water is 2: 1. lf this ratio is to be 1: 2, then what is the quantity of water to be further added? |
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Two numbers are in the ratio 3 : 5. If 9 be subtracted from each, then they are in the ratio 12:23. Find the second number |
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Sum of squares of three positive numbers is 608 and they are in the ratio 2 : 3 : 5. Then, find the numbers |
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If 30% of A = 0.25 of B = 1/5 of C, then find the ratio A. B: C |
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What is the third proportional to 0.34 and 0.50? |
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