If 2 men or 4 women can build a wall in 34 days, in how many days can 6 men and 5 women build the same wall?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 8 days
Given that
If 2 men or 4 women can build a wall in 34 days
Let the 6 men and 5 women build the same wall in D days
the efficiency of a man and a women be M and W respectively
Formula used
Work = time and efficiency
According to the question
2M × 34 = 4W × 34
M/W = 2/1
Total work = 2M × 34 = 2 × 2 × 34 = 136
Hence, the required days = 136/(6 × 2 + 5 ×1) = 136/17 = 8 days