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Start learning 50% faster. Sign in nowTotal age = Average age × number of people Total age of man and his son = 40 × 2 ⇒ 80 years Ratio of their ages = 11 : 5 Let the ratio of age of man and son be 11x : 5x ⇒ 11x + 5x = 80 ⇒ x = 5 years Age of son = 5x ⇒ 5 × 5 ⇒ 25 years ∴ The son's age is 25 years.
Eight years ago, the ratio of Raman's age to Chaman's age was 4:5. Twelve years from now, this ratio will change to 13:15. Calculate the current average...
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 average age of 66(2/3)% of the number of children in a group is 13 years. The average age of all the children in the group is 14.5 years. What is t...
Ratio of present ages of A and B is 5:7, respectively. C who is 9 years older than A will become 36 years older after 12 years. Find the present age of B.
Present age of ‘M’ is 25% more than that of ‘N’. 5 years ago, ‘M’ was 1.5 times as old as ‘N’. Find the present age of ‘N’.
...The ratio of age of ‘B’ after 6 years from now and age of ‘C’ 8 years ago from now is 7:4, respectively. The present age of ‘C’ is 30% of th...
The ratio of the present ages of ‘A’ and ‘B’ is 7:6, respectively. Two years hence from now, the age of ‘B’ will be 20 years. If the average...
The ratio of present ages of Rohan to his father is 2:7, and the ratio of present ages of Rohan to his mother is 3:10. If Rohan's...
‘A’ is 7 years younger than ‘B’ and 6 years elder than ‘C’. If the present age of ‘B’ and ‘D’ is 35 years and 24 years, respectively...
5 years ago from now, the ratio of age of 'A' and 'B' was 9:5, respectively and 5 years hence from now, the ratio of their ages will become 11:7. Find ...
