Time & Work · Question 5 · Easy
Kiran is three times as efficient as Lata. Together they finish a task in 18 days. How many days will Kiran alone take?
- 54 days
- 24 days
- 72 days
- 27 days
Answer and explanation
Answer: B. 24 days
Explanation: If Lata does x per day, Kiran does 3x, so 4x = 1/18 and x = 1/72. Kiran's rate 3/72 = 1/24, so 24 days.
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