A can finish a work in 24 days, B n 9 days and C in 12 days. B&C start the
work but are forced to leave after 3 days. The remaining work done by A in:  Choose the correct choice from the following options
A) 12days
B) 13days
C) 11days
D) 10days
E) 9days
(B+C)'s one day's work=1/9+1/12=7/36   Work done by B &amp; C in 3 days=3*7/36=7/12   Remaining work=1-(7/12)=5/12   Now , 1/24 work is done by A in 1 day.   So, 5/12 work is done by A in  24*5/12= 
<gadget id="calculator"> 24*5/12</gadget>
<output>10</output>
10 days   ANSWER 10days 10days
<result>D</result>
A can finish a work in 24 days, B n 9 days and C in 12 days. B&C start the
work but are forced to leave after 3 days. The remaining work done by A in: