Suresh can complete a job in 15 hours. Ashutosh alone can complete the same job in 15 hours. Suresh works for 9 hours and then the remaining job is completed by Ashutosh. How many hours will it take Ashutosh to complete the remaining job alone? Answers: A) 4 B) 5 C) 6 D) 12 E) None of these
The part of job that Suresh completes in 9 hours   = 9â„15 = 3â„5   Remaining job = 1 - 3â„5 = 2â„5   Remaining job can be done by Ashutosh in 2â„5 Ã— 15 = 6 hours   Answer 6
<result>C</result>
Suresh can complete a job in 15 hours. Ashutosh alone can complete the same job in 15 hours. Suresh works for 9 hours and then the remaining job is completed by Ashutosh. How many hours will it take Ashutosh to complete the remaining job alone?