Question

urs.
t is
ull.
44. A can do a piece of work in
10 days. He works at it for 4 days
and then B finishes it in 9 days. In
how many days can A and B
together finish the work?
to
(1) 6 days
(2) 8 days
(3) 8/2 days
1S.
57
(4) 7/2 days​

Answer 1

Answer:

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