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Question. 49
A and B can do a piece of work in 3 days. B and C can do the same work in 9
days, while C and A can do it in 12 days. Find the time in which A, B and C
can finish the work, working together.
A और B किसी काम को 3 दिन में समाप्त कर सकते हैं B और C उसी काम को 9 दिन में
समाप्त कर सकते हैं जबकि Cऔर A उसी काम को 12 दिन में कर सकते हैं A, B और C द्वारा
मिलकर काम समाप्त करने में लिया गया समय क्या होगा?
(a) 72/19
(b) 72/15
(c) 3
(d) 36

Hindi

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