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Maths Puzzle
A can copy 50 papers in 10 hrs while A &B together can copy 70 papers in 10 hrs.how many hrs will be required for B to copy 26 papers?
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- B alone can copy 20 papers in 10 hrs
Time required for B to copy 26 papers = 26*10/20 = 13 hrs - 12 years agoHelpfull: Yes(4) No(0)
- In 1 hour A can copy 50/10=5 papers
In 1 hour A and B can copy 70/10=7 papers
therefore in 1hr B alone can copy 7-5=2 papers
For 26 papers Ba takes 26/2=13 hrs - 12 years agoHelpfull: Yes(3) No(0)
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