Mathematics · Work and Time
Rajni and Vandana together complete a task in 20 days. Rajni is 4 times as efficient as Vandana. How many days will Vandana alone take to complete the same task?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1100 days✓
- 280 days
- 3150 days
- 4120 days
Correct answer
100 days
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