Question

a and b together can complete a work in 40 days, they start work together and after 31 days b left the work and the whole work is completed in 46 days find the time in which a alone can complete 50% work

Answer 1

Step-by-step explanation:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities.

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Answer 2

Step-by-step explanation:

(A+B)×9 = A×15

9A +9B = 15A

6A = 3B

A:B = 3:2

Then total work done by (A+B) = 5×40 =200

Now,

50% of total work = 200/2 = 100

50% work done by A alone = 100/3 days.