Question

1. A takes 30 days to complete a job. B takes 20
days to finish the same job. If they work together,
how many days will they take to finish the job?​

Answer 1

Step-by-step explanation:

12 days.

A takes 30 days to complete - 1 work

so A takes 1 day to complete - 1/30th of the work

B takes 20 days to complete - 1 work

so B takes 1 day to complete 1/20th of the work

So A and B together do in 1 day - 1/30+ 1/20= 5/60th of the work

if 5/60th of the work is done in - 1 day

Then 1 work is done in - 1/ 5/60 days= 60/5 days=12 days.

So A+B does the work in 12 days.

Answer 2

Answer:

Hlo poonam ...

kya hua tum apni Tara sis ko bhul gyi kya..

aj kal mujhse to bat hi nhi krti ho..

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