SSC CHSL 6 Dec 2015 Shift 1 Paper

Question : 114 of 200

Marks: +1, -0

If 12 men working 8 hours a day complete the work in 10 days, how long would 16 men working 7 1/2 hours a day take to complete the same work ?

Solution:

Using,

M_1D_1H_1=M_2D_2H_2

where M is number of men, D is number of days and H is number of hours
According to ques,
⇒

12 × 10 × 8 = 16 × D_2 ×15/ 2

⇒

120 = 15D_2

⇒

D_2 = 120/15 = 8

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