Question

The rates at which Alok and Bhaskar work are in the ratio 5 : 4. They work on alternate days to complete a job. Bhaskar started the job and he worked on the last day. The job was completed in 1 day more than the time that Alok alone would take to complete it. Find the time taken (in days) by them working together to complete the job.

Answer 1

Answer:

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Answer 2

Answer:

Let the time taken by Alok and Bhaskar to complete the job be 4x days and 5x days

respectively.

Part of the job done in the first 2 days

4x 5x 20x

in the first 4x days, part of the job done

9/20 x4x/2 =9/10

Remaining part of the job -

This must have been done in 1 day by Bhaskar.

1/ 10 of the job can be done by Bhaskar in a day.

..5x = 10 or 4x = 8

Time taken by them to complete the job working together (8)(10)/18 or 40/9