Two trains 120 m and 180 m long are running in opposite
direction on parallel rails. Their speeds are 40 km per hour and 35 km per hour.
Find the time taken to pass each other.
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Answers
Answer:
ANSWER:
2.4 mins
GIVEN:
Two trains 120 m and 180 m long are running in opposite direction on parallel rails.
Their speeds are 40 km per hour and 35 km per hour.
TO FIND:
The time taken to pass each other.
STEP-BY- STEP EXPLANATION:
▪The train would pass themselves after meeting, the two trains would cross the lengths of each train first.
▪So both of the train have to cross
= ( 120 + 180 ) m
= 300 m
▪The speed of the 1st train
= 40 km/hr
= 40000 m/hr
▪The speed of the 2nd train
= 35 km/hr
= 35000 m/hr
▪Both train are running in opposite direction, so in 1 hr they will cross
= ( 40000 + 35000 ) m
= 75000 m
→ 75000 m is crossed in 3600 sec ( 1 hr = 3600 sec )
→ 300 m is crossed in,
⟹ 3600/75000 ×300
⟹ 1080000 / 75000
⟹144sec.
⟹2.4min Answer.
HOPE IT HELPS YOU DEAR
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Answer:
14.4
Explanation:
75*5/18 =300/time
time=14.4