Seats for engineering, management, and science in a university are in the ratio of 7 : 8 : 9. There is a proposal to increase these seats by 20%, 30%, and 60%, respectively. What will be the ratio of the increased seats?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 21 : 26 : 36.
Seats for engineering, management, and science in a university are in the ratio = 7 : 8 : 9
There is a proposal to increase these seats by 20%, 30%, and 60%, respectively.
The ratio of the increased seats = 7 × (100 + 20)/100 : 8 × (100 + 30)/100 : 9 × (100 + 60)/100
⇒ 7 × 120/100 : 8 × 130/100 : 9 × 160/100
⇒ 84 : 104 : 144
⇒ 21 : 26 : 36