Question
Sachin can do a work in 80 days. He works on it for 10
days and then Saurav alone finishes the remaining work in 42 days. In how many days can Sachin and Saurav finish the work together? type-sscSolution
 From the question, 1 Work done by Sachin in 1 day = 1/80 Work done by 1 Sachin in 10 days = 1/ 8  Remaining work = 1-1/8 =7 /8  work is finished by Saurav in 42 days = 7/8 1 part of the work will be done by Saurav = 42×8/ 7 = 48 days’ Time taken by Sachin and Saurav to do the work- SachinSaurabh 8048 480 610 =480/6+10 =30days.
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