Mathematics · Time and Work
A किसी कार्य का एक-चौथाई भाग 5 दिनों में पूरा कर सकता है और B उसी कार्य का दो-पांचवां भाग 10 दिनों में पूरा कर सकता है। A और B दोनों मिलकर उस कार्य को कितने दिनों में पूरा कर सकते हैं?
- 110 1/9
- 213 1/9
- 311 1/9✓
- 412 1/9
सही उत्तर देखें
11 1/9
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