Question
Download Solution PDFPinki can craft a designer pot in 900 minutes while Sneha can do the same work in 20 hours. If they work together, the craft work can be completed in:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Pinki can craft a designer pot in 900 minutes.
Sneha can craft the same pot in 20 hours.
Formula used:
Work rate = 1 / Time taken
Total time when working together = 1 / (Work rate of Pinki + Work rate of Sneha)
Calculation:
900 minutes = 900 ÷ 60 = 15 hours
Work rate of Pinki = 1 ÷ 15
Work rate of Sneha = 1 ÷ 20
Combined work rate = (1 ÷ 15) + (1 ÷ 20)
⇒ Combined work rate = 7 ÷ 60
Total time = 1 ÷ (7 ÷ 60)
⇒ Total time = 60 ÷ 7 ≈ 8.57 hours
∴ The correct answer is option (4) between 8 hours and 9 hours.
Last updated on Jul 16, 2025
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