A and B can do a piece of work in 50 days and 50 days respectively. They work together for 10 days and B leaves. In how many days the whole work is completed?
Pick:
A) 30days
B) 35days
C) 40days
D) 44days
E) 45days
Explanation:   (30days+B)’s 10 days work = 10[1/50+1/50]=10[1+1/50]= 2/5   30days complete remaining work in   2/5*50= 
<gadget id="calculator">  2/5*50</gadget>
<output>20</output>
20   Total work= 10+20= 
<gadget id="calculator">10+20</gadget>
<output>30</output>
30days   30daysnswer: Option 30days
<result>A</result>
A and B can do a piece of work in 50 days and 50 days respectively. They work together for 10 days and B leaves. In how many days the whole work is completed?