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PRASHANT MAURYA

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· 1 Months ago

please give detailed solution

Question:
Subhash can copy 50 pages in 10 hours; Subhash and Prakash can copy 300 pages in 40 hours. In how much time can Prakash copy 30 pages ?
Options:
A) 10 hours 
B) 12 hours 
C) 9 hours 
D) 13 hours 
Solution:
Ans: (b)


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