workers were engaged to finish a piece of work in a certain number of days. workers dropped the second day, more workers dropped the third day and so on. It takes eight more days to finish the work now. The number of days in which the work was completed is
Explanation for the correct option:
Step 1. Let the number of days be in which workers finish the work:
According to the given conditions of question, we get
The terms are in an A.P.
Where, , and
Step 2. Find the sum of terms of given series:
cannot be negative.
So,
the number of days required by 150 workers to complete the work is .
required number of days
Hence, Option ‘C’ is Correct.