A) 15 |
B) 25 |
C) 18 |
D) 10 |
A) 15 |
Let the required number of days be x.
More men, Less days (Indirect proportion)
Less hours, More days (Indirect proportion)
Men 36 : 30
:: 16 : x
Hours/ day 8 : 9
Therefore, \( \Large \left(36 \times 8 \times x\right) = \left(30 \times 9 \times 16\right) \)
Therefore, x = \( \Large \frac{30 \times 9 \times 16}{36 \times 8} \) = 15 days