Each side of a square is increased by 10 %. The percentage increase of its area is :

In a college, 1/5th of the girls and 1/8th of the boys took part in a social camp. The total number of students in the college took part in the camp is :

Ram's income is INR 100 more than that of Shyam. If the average income of Ram and Shyam is INR 850, then Ram's income is :

The unit's digit of the number 6²⁵⁶-4²⁵⁶ is:

The Selling price of a ratio was INR 255 when 15% discount was allowed. Then the marked price of the ratio was

A box contains one rupee, fifty-paise and twenty-five paise coins. The total number of coins are 378. The ratio of values of the above coins is 13:11:7. The number of twenty-five paise coins was: