In a garment industry, 12 men working 8 hours per day complete a piece of work in 10 days. To complete the same work in 12 days, working 16 hours a day, the number of men required is:  Options.
A) 4 B) 5 C) 6 D) 8 E) 9
Explanation :   Let the required number of men be x.   Less days, More men (Indirect Proportion)   More working hrs per day, Less men (Indirect Proportion)   Days 8 : 10   Working Hrs 16: 8 :: 12 : x   =&gt; 12 x 16 x x = 10 x 8 x 12   =&gt; x = 10 x 8 x 12 / (12 x 16)   =&gt; x = 5   Answer : 5
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In a garment industry, 12 men working 8 hours per day complete a piece of work in 10 days. To complete the same work in 12 days, working 16 hours a day, the number of men required is: