The ratio of the number of boys and girls in a college is 7 : 8. If the…
2022
The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls is 20% and 10% respectively, then what will be the new ratio?
- A.
8 : 9
- B.
17 : 18
- C.
21 : 22
- D.
Cannot be determined
Attempted by 130 students.
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Correct answer: C
मान लें लड़के = 7x, लड़कियाँ = 8x
नया लड़के = 7x + 20% = 8.4x
नई लड़कियाँ = 8x + 10% = 8.8x
नया अनुपात = 8.4 : 8.8 = 84 : 88 = 21 : 22 ✔️