A) 10 days
B) 12 days
C) 15 days
D) 16 days
Correct Answer: D
Solution :
1 man \[=\frac{3}{2}\]boys, 8 men \[=\left( 8\times \frac{3}{2} \right)\]boys = 12 boys (4 men + 9 boys)\[=\left( 4\times \frac{3}{2}+9 \right)\]boys = 15 boys Now, 12 boys dig it in 20 days. 1 boy digs it in\[(20\times 12)\]days. 15 boys will dig it in\[\frac{(20\times 12)}{15}\]days = 16 daysYou need to login to perform this action.
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