Seats for Mathematics, Physics and Biology in a school are in the ratio 2 : 3 : 5 . There is a proposal to increase these seats by 40%, 20% and 20% respectively. What will be the ratio of increased seats ? |
5 : 7 : 8 3 : 4 : 5 15 : 9 : 7 7 : 9 : 15 |
7 : 9 : 15 |
ATQ, Mathematics Physics Biology ratio 2 : 3 : 5 let Actual value 20 : 30 : 50 New 20 × 140% : 30 × 120% : 50 × 120% ⇒ 28 : 36 : 60 ⇒ 7 : 9 : 15 |