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Question : Raju and Ramu together can do a piece of work in 8 days, and Raju alone can do it in 12 days. In how many days can Ramu alone do it?

Option 1: 18 days

Option 2: 20 days

Option 3: 22 days

Option 4: 24 days


Team Careers360 20th Jan, 2024
Answer (1)
Team Careers360 25th Jan, 2024

Correct Answer: 24 days


Solution : Raju and Ramu together can do a piece of work in 8 days.
Their 1 day's work = $\frac{1}{8}$
Raju alone can do it in 12 days.
Raju's 1 day's work = $\frac{1}{12}$
So, Ramu's 1 day's work = $\frac{1}{8}-\frac{1}{12}=\frac{1}{24}$
$\therefore$ Ramu can complete the work alone in 24 days.
Hence, the correct answer is 24 days.

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