A completes 5/6 units in 15 days A completes 1 unit in 15 x (6/5) = 18 days B completes 2/3 unit of work in 8 days B completes 1 unit of work in 8 x 3/2 = 12 days LCM of 12 and 18 = 36 units A's efficiency = 3 units/day and B's efficiency = 2 units/day A and B will complete the whole work in (total work)/efficiency of (A + B) = 36/(3 + 2) = 7(1/5) days
C is three years older than B, while ratio of age of A to that of B four years ago was 3: 5. If age of A eight years later will be equal to the age of C...
The combined average age of M, F, and S was 54 years when S got married. After 6 years, an infant was born. The average age of the family, 12 years post...
The heights (in cm) of 9 basketball players in a tournament are as follows: 178, 182, 175, 180, 184, 179, 177, 181, 183
Find the median height of...
Four years ago, ratio of age of A and B was 1:2. Average of present age of A, B and C is 32 years. C is 6 years younger than B. What is the present age ...
The ratio of age of ‘B’ after 2 years from now and age of ‘C’ 4 years ago from now is 7:4, respectively. The present age of ‘C’ is 40% of th...
There are 5 children in a family. The average age of the children is 10 years. If the present age of their mother and father is added, the average age o...
The ratio of the present ages of father and his son is 9:4. The product of their ages 2 years ago was 34 times of his son’s age that year. What wa...
The ages of A, B and C together are 54 years. B is thrice as old as A and C is 4 years older than A. What is the difference between ages of B and C?
A is 2 years older than B while C is 3 years younger than B. The ratio of age of A, 5 years hence and age of B, 4 years ago is 5:4. What was age of C, 1...
Sum of the present ages of Gaurav and Shubham is 100. Age of Gaurav four years ago was twice the age of Shubham six years ago. Find the square root of a...
