1.

Subhash can copy 50 pages in 10 hours; Subhash and Prakash together can copy 300 pages in 40 hours. In how much time can Prakash copy 30 pages?

A. 13 h
B. 12 h
C. 11 h
D. 9 h
E. 10 h
Answer» C. 11 h


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