A can finish a work in 20 days, B in 15 days and C in 12 days. B and C start the work but are forced to leave after 2 days. The remaining work was done by A in :
Choose the correct option.
A) 10 B) 11 C) 12 D) 13 E) 14
(B+C)’s one day’s work = 1/15 + 1/12 = 3/20   Work done by B and C in 2 days = 3* 2/20 = 3/10   Remaining work = 1- 3/10 = 7/10   1/20 work is done by A in 1 day.   So, 7/10 work is done by A in  20 * 7/10= 
<gadget id="calculator"> 20 * 7/10</gadget>
<output>14</output>
14 days   ANSW14R:14
<result>E</result>
A can finish a work in 20 days, B in 15 days and C in 12 days. B and C start the work but are forced to leave after 2 days. The remaining work was done by A in :