The ratio of efficiency of A is to C is 5:3.The ratio of no.of days taken by B is to C is 2:3.A takes 6 days less than C,when A and C completes the work individually.B and C left the work after 2 days.the no of days taken by A to finish the remaining work?  Choices
A) 4.5
B) 5
C) 6
D) 28/3
E) 7
A : B : 6   Efficiency 10 : 9 : 6   No of days 9x : 10x : 15x   given=&gt; 15x-9x = 6   hence, x 15 -9= 
<gadget id="calculator">15 -9</gadget>
<output>6</output>
6   hence, x= 1   Number of days taken by A = 9 and daily work done=10   Number of days taken by B= 10 and daily work done=9 (total work =90)   Number of days taken by 6 = 15 and daily work done=6   work done by B and 6 in initial 2 days =30   rest work =60   Number of days required by A to finish = 60/10= 
<gadget id="calculator">60/10</gadget>
<output>6</output>
6 days   ANSWER:6
<result>C</result>
The ratio of efficiency of A is to C is 5:3.The ratio of no.of days taken by B is to C is 2:3.A takes 6 days less than C,when A and C completes the work individually.B and C left the work after 2 days.the no of days taken by A to finish the remaining work?