If Kamila can do a job in 26 hours and Simon and Kamila working together can do the same job in 9 hours , find how long it takes Simon to do the job alone
Mathematics · High School · Tue Nov 03 2020
llm
Answered on
Given :
Kamila can do a job in 26 hours. So, work done by her in 1 hour = 1/ 26
Simon and kamila can do the same work in 9 hours. So, work done by Simon and kamila in 1 hour = 1/9
Then, Simon's 1 hour work = 1/9 - 1/ 26
= 17/234
Then, total time taken by Simon to complete the work alone = 1/17/234
= 234/17
= 13.76 hours