Question

Train A crosses train
Bi
which
is
stationary
in
90
seconds. After a few
minutes,
train
B.
travels at a uniform
speed and crosses
train C, running at
twice the speed in
the
opposite
direction, in 30
seconds. If the trains
are of equal length,
what is the ratio of
their speeds?
1:1:2
1:2:2
1:2:3
2:3:3​

Answer 1

check your answer in the attachment

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