Question

Two taps A & B can fill tank in 10 hrs and 40 hrs respectively. In how many hrs is the tank filled, if both
the taps were opened simultaneously?
a) 5 hrs
b) 6 hrs
gertype :
c) 7 hrs
d) 8 hrs​

Answer 1

Answer:

Find the part of the tank filled by A and B together in one hour

answer =D

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