6 workers should finish a job in 8 days. After 3 days came 4 workers join them. How many days X do they need to finish the same job?  Choices.
A) 3	B) 4	C) 5	D) 6	E) 7
Let Rate of one worker be R   =&gt; (6*R)*8 = 1 (Rate * Time = work)   =&gt; R = 1/48   =&gt; Work remaining after 3 days   1 - (3*6)/48 = 30/48   3fter 4 ppl joined in   ((6+4)*Time)/48 = 30/48   Time X= 3 days to finish the task   IMO 3
<result>A</result>
6 workers should finish a job in 8 days. After 3 days came 4 workers join them. How many days X do they need to finish the same job?