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 from the following answers:  A) 2 : 3 : 4  B) 6 : 7 : 8  C) 6 : 8 : 9  D) 6 : 8 : 7  E) None of these
let 100% seats are there in all then mathematics increased by 40% then   5*140/100= 
<gadget id="calculator">5*140/100</gadget>
<output>7</output>
7   physics is increased by 50% then   7*150/100=21/2   biology increased by 75% then   8*175/100= 
<gadget id="calculator">8*175/100</gadget>
<output>14</output>
14   then ratios of increasing seats are 7:21/2:14   14:21:28   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?