Tom can do a piece of work in 5 days and Ben alone can do it in 10 days. How much time will both take to finish the work ? Choose the correct choice from the following options:	A) A)3.3333	B) B)4.3333	C) C)7.3333	D) D)5.3333	E) E)2.3333
This question can be solved by different methods. We need to conserve time in exams so solving this problem using equations is the good idea.   Time taken to finish the job = XY / (X + Y)   = 5 x 10 / (5 + 10)   = 50 / 15   = 3.3333 days   3.3333nswer: 3.3333
<result>A</result>
Tom can do a piece of work in 5 days and Ben alone can do it in 10 days. How much time will both take to finish the work ?