A train travelling at the rate of 60 km per hr, while inside a tunnel, meets another train of half its length travelling at 90 km per hr. and passes completely in 41seconds.2 Find the length of the tunnel if the first train passes completely through it in 4 minutes 371seconds.2

A train travelling at the rate of 60 km per hr, while inside a tunnel,

1.	A train travelling at the rate of 60 km per hr, while inside a tunnel, meets another train of half its length travelling at 90 km per hr. and passes completely in 41seconds.2 Find the length of the tunnel if the first train passes completely through it in 4 minutes 371seconds.2
A.	5 km
B.	3.5 km
C.	4.5 km
D.	6 km
Answer» D. 6 km

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A train travelling at the rate of 60 km per hr, while inside a tunnel, meets another train of half its length travelling at 90 km per hr. and passes completely in 41seconds.2 Find the length of the tunnel if the first train passes completely through it in 4 minutes 371seconds.2

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