A, B can Complete a work in 15 days &10 days respectively. They started doing thework together after 2 days B had to leave and A alone completed the remaining work.The whole work wascompleted in how many days? Answers.
A) 8 days
B) 10 days
C) 12 days
D) 14 days
E) 16 days
A and B can complete whole work in   30/(2+3)= 
<gadget id="calculator">30/(2+3)</gadget>
<output>6</output>
6 days   Part of work completed together in   3 days=2/6=1/3 part   Now 2/3 part will be completed by A in    2/3*15= 
<gadget id="calculator"> 2/3*15</gadget>
<output>10</output>
10 days   Hence, whole work will be completed in     2+10= 
<gadget id="calculator">  2+10</gadget>
<output>12</output>
12 days   12 days
<result>C</result>
A, B can Complete a work in 15 days &10 days respectively. They started doing thework together after 2 days B had to leave and A alone completed the remaining work.The whole work wascompleted in how many days?