Seats for Maths, Physics and Biology are in the ratio of 5 : 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?

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BANK PO Exam (Canara Bank) 2003 click here to view all questions

Seats for Maths, Physics and Biology are in the ratio of 5 : 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?

A2 : 3 : 4

B6 : 7 : 8

C6 : 8 : 9

DCannot be determined

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Correct answer is: 2 : 3 : 4 Explanation: Let the initial seats for Maths, Physics and Biology be 5x. 7x and 8x respectively. Now. new seats for Maths = $\frac{5x\times 140}{100}$ For Physics = $\frac{7x\times 150}{100}$ and for Biology = $\frac{8x\times 175}{100}$ Therefore, Required ratio $\frac{5x\times 140}{100}:\frac{7x\times 150}{100}:\frac{8x\times 175}{100}$ $5\times 140:7\times 150:8\times 175$ $=2:3:4$ Nithin ? answered Aug 11 '2022 at 21:12 All Comments

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