A can copy 75 pages in 25 hours. A and B together can copy 135 pages in 27 hours. In what time can B copy 42 pages ?

A can copy 75 pages in 25 hours. A and B together can copy 135 pages i

1.	A can copy 75 pages in 25 hours. A and B together can copy 135 pages in 27 hours. In what time can B copy 42 pages ?
A.	21 hours
B.	5 hours, 36 second
C.	18 hours
D.	24 hours
Answer» B. 5 hours, 36 second

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A can copy 75 pages in 25 hours. A and B together can copy 135 pages in 27 hours. In what time can B copy 42 pages ?

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