please help me the question no .2
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is. the answer is 1 then tell me I will answer
ravi2070:
ans is 12
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Answer:
In 12 days.
Step-by-step explanation:
the work done by A in a day = 1/20
the work done by B in a day = 1/30
When they do together = 1/20 + 1/30.
= 5/60 = 1/12.
They can do 1/12 work in a day So,
They can do the whole work in 12 days.
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