Question

The distance between two stations is 240 km a train takes 4 hrs to cover this distance

calculate the speed of the train.

A) 80 km/hr B) 60 km/hr C) 40 km/hr D) 90 km/hr​

Answer 1

Gɪᴠᴇɴ :-

• Distance (d) = 240 km
• Time taken (t) = 4 hrs

ᴛᴏ ғɪɴᴅ :-

• Speed (s) of the train

sᴏʟᴜᴛɪᴏɴ :-

We know that,

➭ Distance = Speed × Time

➭ d = s × t

On putting above given values in it, we get,

➭ 240 = s × 4

➭ s = 240/4

➭ s = 60 km/hr

Hence,

• Speed (s) of the train is 60 km/hr

Hence,

• Option (B) 60 km/hr is correct

Extra Informationa

• v = u + at (First equation of motion)
• s = ut + ½ at² (Second equation of motion)
• v² = u² + 2as (Third equation of motion)
• S.I unit of distance is meter
• 1km = 1000m
• 1m = 100cm

Answer 2

ANSWER:

Distance=240km = 24000 m
Time =4hrs = 240 minutes = 14400
Speed = distance/time
= 24000/14000
=1.67 m/s

Hope it helps u