George can do a piece of work in 8 hours. Paul can do the same work in 10 hours, Hari can do the same work in 12 hours. George, paul and hari start the same work at 9 am, while george stops at 11 am, the remaining two complete the work. What time will the work complete? Pick:	A) 1	B) 2	C) 3	D) 5	E) 4
Let the total work = 120 units.   As George completes this entire work in 8 hours, his capacity is 15 units /hour   Similarly, the capacity of paul is 12 units / hour   the capacity of Hari is 10 units / hour   All 3 started at 9 am and worked upto 11 am. So total work done upto 11 am = 2 x (15 + 12 + 10) = 74   Remaining work = 120 - 74= 
<gadget id="calculator">120 - 74</gadget>
<output>46</output>
46   Now this work is to be done by paul and hari. 46 / (12 + 10)= 2 hours (approx)   So work gets completed at 1 pm   Answer:4
<result>E</result>
George can do a piece of work in 8 hours. Paul can do the same work in 10 hours, Hari can do the same work in 12 hours. George, paul and hari start the same work at 9 am, while george stops at 11 am, the remaining two complete the work. What time will the work complete?