# A can finish a work in 18 days

a can finish a work in 18 days and b can do the same work in 15 days. b worked for 10 days and left the job. in how many days a alone can finish the remaining work? a) 7 b) 6 c) 5 d) 10

B worked for 10 days. So, remaining 5 days work is pending. This is 5/15 = 1/3rd of work.

a can finish the work in 18 days. So, 1/3rd of work can be done in 18 × 1/3 = 6 days.

Option: (b)

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