aptitude-hindi - Aptitude-Time and works

A and B can do a piece of work in 72 days, B&c can do it in 120 days; A&c can do it in 90 days. in what time can A alone do it?


दैनिक समाचार

रिजर्व बैंक ऑफ इंडिया विदेशों से सोना

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जल दक्षता लक्ष्य:

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विश्व स्वास्थ्य

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