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Q. The ratio of the cost price and selling price is 5 : 4, the loss percent is = ?
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Q. A train speeds past a pole in 15 seconds and a platform 100 m long in 25 seconds. Its length is:
Q. If a : b = 3 : 8, find the value of (5a-3b) / (2a + b).
Q. The ratio of the radii of two circle is 3 : 2. What is the ratio of their circumferences ?
Q. The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is:
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