For the following questions answer them individually
The liSt price of an article is 160 and a customer buys it for 122.40 after two successive discounts. If the first discount is 10%, then second discount is
In a school, 10% of number of girls is equal to 1/20 th of number of boys. Ratio between the number of boys to number of girls is
The ratio of $$25^{2.5}:5^{3}$$ is equal to
If a, b. c, d, e are five consecutive odd numbers, their average is
The average of 20 numbers is 15 and the average of first five is 12. The average of the rest is
A tradesman sold an article at a loss of 20%. If the selling price had been increased by 100, there would have been a gain of 5%. The cost price of the article (in Z.) was
The price of an article is first decreased by 20% and then increased by 30%. If the resulting price is 416, the original price of the article is
A man performs 2/15 of the total journey by train, 2/20 of remaining by bus and the remaining 10 km on foot. His total journey in km is
By walking at 3/4 of his usual speed, a man reaches his office 20 minutes later than usual. His usual time is
If the compound interest on a certain sum for two years at 12% per annum is 2,544, the simple interest on it at the same rate for 2 years will be
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