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>> A can do piece of work in 30 days while B can do it in 40 days. In how many days can A and B working...
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Q. A can do piece of work in 30 days while B can do it in 40 days. In how many days can A and B working together do it ?
a.
70 days
b.
120/7 days
c.
50 days
d.
45 days
ANSWER: 120/7 days
Answer & Explanation
No explanation is available for this question!
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