Question

$150$ workers were engaged to finish a piece of work in a certain number of days. Four workers stopped working on the second day, Four more workers stopped their work on the third day and so on. It took $8$ more days to finish the work. Then the number of days in which the work was completed is

• A. 29 days
• B. 24 days
• C. 25 days
• D. 23 days

Answer 1

Answer: (C)

Use sum of n terms of $A.P$