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### Discussion :: Time and Work

1. 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?

2.  A. 5 B. 5$$\frac { 1 } { 2 }$$ C. 6 D. 8

Explanation :

B's 10 day's work =[$$\frac { 1 } { 15 }*10]$$=$$\frac { 2 } { 3}$$

Remaining work =[1-$$\frac { 2 } { 3}$$]=$$\frac { 1 } { 3}$$

Now,   $$\frac { 1 } { 18}$$   work is done by A in 1 day.

$$\frac { 1 } { 3}$$work is done by A in[18x$$\frac { 1 } { 3}$$]=6 days

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