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Note: You cannot revisit this question upon navigat 9783110 B and C working together can complete a job in 1 B. Determine the time taken by A if he works individ 43110 75.27 days 60.27 days Com 37.27 days 17431162 124​

Answer 1

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A and B, working together can complete a job in 3 hours. If A alone can do the job in 7

2

1

hours, in how much time can B alone finish the job ?

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Solution

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A and B can together complete the job in 3 hours.

A alone can do in

2

15

hours.

Let B can do in x hours.

Then,

x

1

+

15

2

=

3

1

x

1

=

3

1

−

15

2

x

1

=

15

3

x=5

Hence, B alone can complete the jon in 5 hours.