A and B can finish a job together in 12 days
while B alone can finish the same job in 30 days.
In how many days can A alone finish the job?
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Step-by-step explanation:
A and B together can finish the job in 12 days
B can finish the same job in 30 days
A can finish the job in 30-12 = 18 days.
Hope this helped
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