three men A B C, can do a piece of work in 9 hr ,18 hr and 12hr respectively .how long will they if they work together
Answers
Answered by
4
Answer:
72/23
Step-by-step explanation:
Word done by A = 1/9 h
Work done by B = 1/18h
Work done by C = 1/12h
Work done by all three together = A + B + C
= 1/9 + 1/8 + 1/12
= (8 + 9 + 6) / 72
= 23/72
So. the work done by all three is 72/23 (it will be reciprcal of the answer.)
Answered by
2
Answer:
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