If 5 workers finish a job in 8 days how many days will 10 workers take?
A
2 days
B
4 days
C
6 days
D
8 days
Correct Answer: Option B — 4 days
Explanation:
Total work = 5×8 = 40 worker-days. With 10 workers: days = 40÷10 = 4 days. Work and time problems rely on the inverse relationship between number of workers and time. They are among the most common question types in competitive exams requiring understanding of work rate as a fundamental concept.