A and B can do a work in 12 days, B and C in 15 days, and C and A in 20 days. In how many days can A, B and C together finish it?
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Correct answer: (B) 10 days
From DSSSB TGT Computer Science Full Mock Test 2
This is question 55 of DSSSB TGT Computer Science Full Mock Test 2. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.