In a row of boys, A is 15th from the left and B is fourth from the right. There are three boys between A and B, C is first left of A. What is the position of C from the right?

If a, b, c, d, e and f satisfy 2a = 3b = 6c = 9d = 12e = 18f, then what is the value of (a + b)/(c + d + e + f)?

The age of Q exceeds the age of P by 3 years. The age of R is twice the age of P and the age of Q is twice the age of S. Further, the age difference of R and S is 30 years. What is the sum of the age…

The sum of the reciprocals of A’s ages (in years) 2 years ago and 2 years from now is 2/3. The present age of A is

If bc + cd = 2bd and a + c = 2b, then which one of the following is correct?

5 equivalent vertical lines are drawn on a board. 5 equidistant horizontal lines are also drawn on the board cutting the 5 vertical lines and the distance between any two consecutive horizontal lines…