If 35 men can finish a work in 6 days, then in how many days can 7 men do half of the same work?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 15
Total work = Efficiency × total time taken by them
Let the efficiency of each worker = x
So, total efficiency = 35x
Now, total work = 35x × 6 = 210x
Half of work = 210x/2 = 105x
Now, Required time = 105x/7 = 15 days