A boy was required to divide a given number by 3/5 while he wrongly multiplied the same number with 3/5 . If he gets the answer as 4 1/2 what is the correct answer?
The area of a hall is 1250 sq.m. The length of the hall is double its breadth. The length of the hall is
At what rate of simple interest per annum an amount will be doubled in 10 years?
Find the sum of the first 100 natural numbers
Study the numbers and complete the series 6, 24, 60, 120, 210, 336, 504, ?
A father is 25 years older then his son. Ten years ago father’s age was 6 times of his son’s age. What is the present age of son?