A contractor planned to finish a work in 12 days and employed a certain number of men. However, 6 of them remained absent from the very first day. The rest could finish the work in 20 days. The number of men originally employed were:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 15
|
Concept |
Understanding |
Application |
|
M1 × D1 = M2 × D2 |
Suppose ‘x’ men were employed at first which were planned to finish the work in 12 days.
|
Since 6 men were absent, work got completed in 20 days: x × 12 = (x – 6) × 20 8x = 120 x = 15 |