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1. Seats for Mathematics, Physics and Biology in a university are in the ratio 5: 7: 8, There is a proposal to increase these seats by 40% , 50% and 75% respectively. what will be ratio of increased seats?
- A. 2: 3: 4
- B. 2: 3: 4
- C. 2: 3: 4
- D. 2: 3: 4
Answer: Option A
Explanation:
Let, the number of seats for Math, physics, and biology, be 5x, 7x and 8x respectively
Number of increased seats are ( 140% of 5x).
(150% of 7x) ( 175% of 8x)
= (140/100×5x) , ( 150/100×7x), ( 175/100×8x)
7x, 21x/2, 14x
The required ratio = 7x : 21x/2 : 14x
= 14x : 21x : 28x
= 2 : 3 : 4
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