45 men working 8 hours per day dig 30 m deep. How many extra men should be put to dig to a depth of 50 m working 6 hours per day?  Answers.
A) 338	B) 667	C) 188	D) 100	E) 281
(45 * 8)/30 = (x * 6)/50 =&gt; x =100   100 – 45 = 55   Answer: 100
<result>D</result>
45 men working 8 hours per day dig 30 m deep. How many extra men should be put to dig to a depth of 50 m working 6 hours per day?