Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats ?

A. 2 : 3 : 4

B. 6 : 7 : 8

C. 6 : 8 : 9

D. None of these

✅ The correct answer is option A. 2 : 3 : 4.
5:7:8 = 50:70:80

50*140/100=70 ; 70*150/100=105 ; 80*175/100=140

70: 105: 140 or

14: 21: 28 or

2: 3: 4

36. Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats ?