Ravi can do a piece of work in 50 days while Prakash can do it in 75 days. In how many days will they finish it together?  Options
A) 30 days  B) 35 days  C) 25 days  D) 27 days  E) 29 days
1/50 + 1/75 = 5/150   30/1= 
<gadget id="calculator">30/1</gadget>
<output>30</output>
30 days   30 daysNSWER:30 days
<result>A</result>
Ravi can do a piece of work in 50 days while Prakash can do it in 75 days. In how many days will they finish it together?