. a take 12 hrs to make publication b take 10 hrs to make publication. find the time taken by them to make two publications working independently? a) 12 hours b) 11 hours b) 22 hours d) 11 hours 40 minutes
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The two that is a and b work independently.
This means that a works on one publication separately and the other works separately.
If a takes one publication he will take 12 hrs.
If b takes the other publication, he will take 10 hrs.
The total time the two take will be :
12 + 10 = 22
The answer is thus :
22 hrs.
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