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 one:
A) 2:3:4 B) 6:7:8 C) 6:8:9 D) None of these E) Cannot be determined
Explanation :   Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x respectively.   And, the number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x).   =&gt;(140/100)×5x, (150/100)×7x, (175/100)×8x.   =&gt;7x, 21x/2, 14x.   The required ratio :-   =&gt;7x : 21x/2 : 14x.   =&gt;14x : 21x : 28x.   =&gt;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?