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? Choose the correct choice:	A) 2:3:4	B) 6:7:8	C) 6:7:9	D) 8:9:7	E) 1:8:7
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	x 5x , 150	x 7x and 175	x 8x   100	100	100   7x,	21x	and 14x.   2   The required ratio = 7x :	21x	: 14x   2   14x : 21x : 28x   2 : 3 : 4.   so the answer is option 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?