Math, asked by pallvikumari957, 11 months ago

A 200 m long train crosses 400 m
bridge in 30 seconds. Find the
speed of the train. (JNV, 2009)
(a) 54 km/hr (b) 70 km/hr
(c) 144 km/hr (d) 72 km/hr
10

Answers

Answered by RockAdi

2

Answer:

D 72 km/p

Step-by-step explanation:

first we will take the total distance

200+400 = 600

therefore

speed= distance÷time

600÷30

= 20 m/s

convert 20m/s to km/p

72 km

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