42 men can complete a piece of work in 18 days. In how many days will 27 men complete the same work ?	Choose one.
A) 28 B) 77 C) 36 D) 25 E) 13
Explanation:   Less Men, means more Days {Indirect Proportion}   Let the number of days be x   then,   27 : 42 :: 18 : x   [Please pay attention, we have written 27 : 42 rather than 42 : 27, in indirect proportion, if you get it then chain rule is clear to you :)]   {\color{Blue} x=\frac{42\times 18}{27}}   x = 28   So 28 days will be required to get work done by 27 men.   28nswer: 28
<result>A</result>
42 men can complete a piece of work in 18 days. In how many days will 27 men complete the same work ?