A work which could be finished in 9 days was finished 3 days earlier after 10 more men joined. The number of men employed was?
Choose the correct choice from the following answers:
A) 22	B) 20	C) 99	D) 277	E) 12
x ------- 9   (x + 10) ---- 6   x * 9 = (x + 10)6   x = 20   Answer: 20
<result>B</result>
A work which could be finished in 9 days was finished 3 days earlier after 10 more men joined. The number of men employed was?