2 men and 5 boys can do a piece of work in 4 days while 4 men and 4 boys can do the same piece of work in 3 days .how long would it take A. 1 man alone to do, B.one boy alone to do, C.one man and one boy to do
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A: 1.75 days
B: 1.75 days
C: 0.875 days
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Answer:
Step-by-step explanation:
= 2+5= 7
= 7 persons can work for =4days
= 1 person can work for = 7/4 = 1.75
= and two can work for = 1.75 *2 = 3.56
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