The present ages of the three people in proportions is 3 : 5 : 7. Six years ago, the sum of their ages was 87. Find their present ages (in years )
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 21 years, 35 years, 49 years.
The present ages of the three people in proportions are 3 : 5 : 7
⇒ (3x - 6) + (5x - 6) + (7x - 6) = 87
⇒ 15x - 18 = 87
⇒ 15x = 105
⇒ x = 7
First person's age = 3x = 21 years
Second person's age = 5x = 35 years and,
Third person's age = 7x = 49 years