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In a school having roll strength 286, the ratio of boys and girls is 8 : 5. If 22 more girls get admitted into the school, the ratio of boys and girls becomes
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- 12 : 7
- 10 : 7
- 8 : 7
- 4 : 3
Correct Option: D
Initially number of boys
| = | × 286 = | × 286 = 176 | ||
| 8 + 5 | 13 |
∴ Number of girls
| = | × 286 = 110 | |
| 13 |
22 more girls get admitted.
∴ Required ratio
| = | = | = | |||
| 110 + 22 | 132 | 3 |
= 4 : 3
