Solve this TIME WORK PROB!

If m men can do a job in d days , then the number of days in which m+r men can do the job ?

1.d+r
2.dm(m+r)
3.dm+r
4.mdm+r

Details Should be included !

2 Answers

1 man=md days
m+r "=md/m+r days
Is this a joke????

put r = m , so work will be done in d/2 days so option 4 .

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