MPSC Rajyaseva 2022 CSAT — Question 72
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A आणि B एक काम अनुक्रमे 15 आणि 10 दिवसांमध्ये पूर्ण करतात. दोघांनी एकत्र काम करण्यास सुरुवात केली, परंतु दोन दिवसांनंतर B ला काम सोडावे लागले आणि उरलेले काम A ने पूर्ण केले. हे काम किती दिवसांमध्ये पूर्ण झाले ? / A and B can complete a work in 15 days and 10 days respectively. They started doing the work together, but after 2 days B had to leave and A alone completed the remaining work. In how many days was the work completed?
A's 1-day work = 1/15, B's = 1/10. Work done by both in 2 days = 2 * (1/15 + 1/10) = 1/3. Remaining work = 2/3. A completes 2/3 work in (2/3) * 15 = 10 days. Total days = 2 + 10 = 12.
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