Ravi can do a piece of work in 30 days while Prakash can do it in 40 days. In how many days will they finish it together? - Study24x7
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Ravi can do a piece of work in 30 days while Prakash can do it in 40 days. In how many days will they finish it together?

A

171/7 days

B

271/7 days

C

232/7 days

D

164/11 days

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