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If 4 men or 8 women can do a piece of work in 15 days, in how many days can 6 men and 12 women do the same piece of work ?
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- 20 days
- 45 days
- 15 days
- 30 days
- None of these
Correct Option: E
4 men ≡ 8 women
⇒ 1 man ≡ 2 women
∴ 6 men + 12 women ≡ 12 women + 12 women ≡ 24 women
∴ M1D1 = M2D2
⇒ 8 × 15 = 24 × D2
| ⇒ D2 = | = 5 days | 24 |
Aliter : Using Rule 12,
Here, A = 4, B = 8, a = 15
A1 = 6, B1= 12
Required number of days
| = | A1B + B1A |
| = | = 5 days | 96 |
