Question

An electric train is moving with the velocity of 120km/hr . How much distance will it cover in 30 seconds

Answer 1

$= > \frac{120}{60 \times 60} = \frac{x}{30} \\ = > 60 \times 60 \times x = 120 \times 30 \\ = > x = \frac{120 \times 30}{60 \times 60} \\ = > x = 1km \: \: \\ hope \: it \: will \: help \: u$
using proportional
let X be the distance
therefore