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? Answers
A) 2 : 3 : 4 B) 6 : 7 : 8 C) 6 : 8 : 9 D) 4 : 6 : 8 E) None of these
Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x respectively.   Number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x).   (140/100 * 5x), (150/100 * 7x) and (175/100* 8x)   7x, 21x/2 and 14x   The required ratio = 7x : 21x/2 : 14x   14x : 21x : 28x   2 : 3 : 4   2 : 3 : 4nswer = 2 : 3 : 4
<result>A</result>
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?