If 13 men working 6 hours a day can do a work in 88 days. Then 6 men working 8 hours a day can do it in how many days? Options:	A) 78 days.	B) 143 days.	C) 149 days.	D) 148 days.	E) 67 days.
B   143 days.   From the above formula i.e (m1*t1/w1) = (m2*t2/w2)   so (13*6*88/1) = (6*8*d/1)   on solving, d = 143 days.
<result>B</result>
If 13 men working 6 hours a day can do a work in 88 days. Then 6 men working 8 hours a day can do it in how many days?