Question

Two trains namely X & Y leave station 'A' at 6.30am and 7.40am and travel at 30km/hr and 40 km/hr respectively. How many kms from 'A' will the trains meet ?
A) 140 kms
B) 120 kms
C) 96 kms
D) 142 kms

Answer 1

Hii dear here is your answer


option d is the correct answer
Hope it's help u

Answer 2

Answer: A) 140 kms

Solution-:

●It is given train X leave station A at 6:30 am, here it is asked to calculate the distance from A when the trains meet, the

●Distance traveled by train left at 6:30 am upto 7:40 am i.e. in 1 hr. 10 min. or 7/6 hours = 30 x 7/6 = 35 km

●So train leaving at 7:40 am will meet first train after covering a distance of 35 km. with relative speed of 40-30=10 km/hr.

●Hence time taken = 35/10 = 3.5 hours or 3 hours 30 minutes

So distance from A = Distance traveled by 2nd train in 3 hr. 30 min

= 40 x 3.5 = 140 km.