Question

Two trains of length 140m & 120m are running in

same direction on parallel tracks with speeds 132

kmph & 80 kmph respectively. How much time will

they take to cross each other?​

Answer 1

★ Answer

• Two trains of length 140m and 120m
• Speed of the two trains 132 kmph and 80 kmph

Firstly, We have to find the final distance b/w the two trains. If both the trains are running in the same direction, then we'll find the difference b/w them.

→ (Difference of distance b/w both trains)

→ (140 - 120)m

→ 20 m

» Final Speed of both the trains.

→ (132 - 80) kmph

→ 52 kmph

Now, We know that we can find the time by using time-distance formula.

→ Time = Distance/Speed

→ 20/52 hr

→ 5/13 hr

Hence,

They take 5/13 hrs to cross each other.

Answer 2

Answer:

$\dfrac{5}{13} \sf hrs \:$