Seats for Maths, Physics and Biology are in the ratio of 4 : 7 : 8 respectively. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the respective ratio of increased seats? Choose one.
A) 2 : 3 : 4
B) 6 : 7 : 8
C) 8 : 15 : 20
D) Cannot be determined
E) None of these
Reqd ratio 4 Ã— 140â„100 : 7 Ã— 150â„100 : 8 Ã— 175â„100   = 4 Ã— 140 : 7 Ã— 150 : 8 Ã— 175 = 8 : 15 : 20   Answer 8 : 15 : 20
<result>C</result>
Seats for Maths, Physics and Biology are in the ratio of 4 : 7 : 8 respectively. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the respective ratio of increased seats?