Volume of sphere = (4/3) x π X r3 {Where 'r' is the radius} 2304π = (4/3) x π x r3 Or, r3 = 1728 = 123 So, r = 12 cm Surface area of sphere = 4 x π x r2 = 4 x π x 122 = 576π cm2
The ages of A, B and C together are 62 years. B is twice as old as A and C is 6 years older than A. What is the difference between ages of B and C?
The ratio of the present age of A to that of B is 7:9. Six years ago the ratio of 1/3 of A’s age at that time and 1/3 of B’s age at that time was 1:...
Three years from now, Aman's age will be 80% greater than what it was five years ago. The average of Aman's current age and Bishn...
The average of the current ages of Ram and his father is 44 years. In six years, Ram's age will be half of his father's age four years ago. What is the ...
The ratio of the present ages of father and his son is 7:5. The product of their ages 3 years ago was 32 times of his son’s age that year. What was so...
Reena is twice as old as Sunita .Three years ago, she was three times as old as Sunita. How old is Reena now?
B is 3 years older than A and A is 6 years older than C. If the sum of the age of A and C is 26 years, then find the sum of the ages of all three.
The ratio of A and B present age is 4:3. The product of their ages is 4800. What will be the ratio of their ages after 5 years?
The current ages of P and Q are in the ratio of 8:5. The ratio of P's age seven years ago to Q's age ten years from now is 5:6. W...
Ten years ago, the average age of five employees was 35 years. The present average age is 45 years after the inclusion of two new employees. Find the pr...
