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1581.If A completes a work in 12 days and B completes it in 18 days, how many days will they take together?
1582.If A:B = 2:3 and B:C = 4:5, then find A:C?
1583.The ratio of father’s and son’s ages is 9:2. After 12 years, it becomes 3:1. What is the present age of the son?
1584.(x + 1)(x + 2)(x + 3) = 210?
1585.3x + 24 = 16, x-y =2, value of x is?
1586.The marked price of a coat is Rs. 2000. The shopkeeper offers his customer two successive discounts 10% and 5%. Find the final selling price of the coat?
1587.If a:b = 6:7 and b:c = 7:8, then a:c is equals?