Question

two trains for Bhopal leave Delhi
at 9 am and 8:30 am and travel at
90 km/h and 80 km/h respectively.
How many kilometres from Delhi
will the two trains be together?
(a) 360 km
(b) 320 km
(c) 270 km
(d) 280 km​

Answer 1

Answer:

u can see in the pic

Step-by-step explanation:

hope it'll help you with

Answer 2

Answer:

a.360 km

Step-by-step explanation:

Distance travelled by the train at 80 km/hr in 30 min. = 40 km. This distance of 40 km is to be covered with a relative speed of

(90 - 80) = 10 km/hr.

Time taken to cover this distance = 40/10=4hr

Hence, the trains will be together after 4 × 90=360 km from Delhi.