A student scores 55% marks in 8 papers of 100 marks each. He scores 15% of his total marks in English. How much does he …

If 20% of (A + B) = 50% of B, then value of $$\frac{2A - B}{2A + B}$$   is :

In the Bombay Stock Exchange there are 45% female employees and thus the number of male employees is exceeded by 72. Hen…

42% of a number is 892.5. What is 73% of that number ?

By how much percent must a motorist increase his speed in order of reduce by 20%, the time taken to cover a certain dist…

A batsman scored 110 runs which included 3 boundaries and 8 sixes. What percent of his total score did he make by runnin…

If 80% of A = 50% of B and B = x% of A, then the value of x is :

Solve this : (7.9% of 134) - (3.4% of 79) = ?