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 ?
Answer & explanation
Correct answer: option 4
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