1. A and B together can do a piece of
work in 10 days. If A alone can do
the same work in 15 days, in how
many days can B alone do the
same work?
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Answer:
6 days
Step-by-step explanation:
A+B= 10 days
A alone 15 days
LCM of both uper days =30
then A+b=3 days
A=2 days
total 5days
30÷5=6 days
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