Question : Working 15 hours a day, Vaibhav can complete a piece of work in 35 days. How many hours a day should he work to finish the work in 25 days?
Option 1: 21 hours
Option 2: 20 hours
Option 3: 18 hours
Option 4: 17 hours
Answer (1)
17th Jan, 2024
Correct Answer: 21 hours
Solution :
Total time taken = 15 × 35 = 525 hours
$\therefore$ Time needed daily to complete the work in 25 days = $\frac{525}{25}$ = 21
Hence, the correct answer is 21 hours.
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