If x + y = 12 and xy = 32 then $\dfrac{1}{x}$ + $\dfrac{1}{y}$ is
1$\div\dfrac{5}{7}$ of 6$\dfrac{3}{10}$-$\dfrac{2}{9}$ = ? |
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By selling an article for Rs.480, a person lost 20%. For what amount should he sell it to make a profit of 20%? |
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The highest common factor and lowest common multiple of two numbers are 12 and 144 |
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Three numbers are in the ratio 3:4:5 and their LCM is 240. Then the HCF of these number is |
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LCM of two numbers is 14 times their HCF. The sum of LCM and HCF is 600. If one number is 280 then the other number is |
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The compound interest on Rs. 30,000 at 7% per annum is Rs. 4,347. The period in years is |
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A sum of money doubles itself in 20 years in simple interest. Then the rate of interest per annum is |
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The difference between compound interest and the simple interest on Rs. 1,250 for 2 years at 8% is |
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A flower garden is in the shape of a rhombus. The length of its diagonals are 18 m and 25 m. Find the area of the flower garden. |
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If a square and a rhombus stand on the same base, then the ratio of the area of the square and the rhombus is |
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