Question
The ratio of age of ‘B’ after 7 years from now and
age of ‘C’ 6 years ago from now is 7:4, respectively. The present age of ‘C’ is 30% of the present age of ‘A’. If present age of ‘A’ is 40 years then find the present age of ‘B’.Solution
Present age of ‘C’ = 0.3 × 40 = 12 years 6 years ago from now, age of ‘C’ = 12 – 4 = 8 years 7 years hence from now, age of ‘B’ = 8 × (7/4) = 14 years Present age of ‘B’ = 14 – 7 = 7 years
More Age Questions
Which of the following is a Prime Number?
- Let ‘n’ be the smallest perfect square divisible by 22, 26, 33 and 39. What is the remainder when ‘n’ is divided by 100?
- The combined number of apples with John and Paul is 10 more than the number with George. Also, Paul and George together have 6 more apples than John. If Jo...
A monkey climbs a tower of height 60 m. It climbs 5m above in 1st minute and 4m below in 2nd minute. In how many minutes monkey wi...
There are three numbers 'a', 'b' and 'c' (a < b < c) such that 'b' is equal to the average of 'a' and 'c'. 70% of 'c' is equal to 'a' and the difference...
Find 52 × 48 without doing full multiplication directly.
Find the smallest 4-digit number which leaves a remainder 5 when divided by each of 6, 8 and 9.
- A two-digit number '8d' is completely divisible by '4'. When the same number is divided by '3', there is a remainder of '1'. Find the value of 'd'.
- Rohit’s strike rate after playing k balls is 300. In next 12 balls, he scored 60 more runs and his strike rate increased by 60. Find the value of 2k.
Find the remainder when (5)100 is divided by 7
