8. A works twice as fast as B They work together and complete a job in 8 days. How long,
would A take to complete the job?
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Answer: A can do a job at 12 days
Step-by-step explanation:
Let, A can do a work in x days
Then, B can do a work in 2x days
A can do a work in 1 day = 1/x
B can do a work in 1 day = 1/2x
A n B can do a work together in 1/(3/2x) = 2x/3 days
Now, 2x/3 = 8
, x = 12 days
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