Question

Two vehicles are 180 km apart . they started moving towards each other at speeds of 30 km/hr and 60lm/hr respectively . how much time do they take to meet

Answer 1

Distance between vehicles = 180 km

let t be the time to meet

distance travelled by 30 kmph body

= 30×t km

distance travelled by 60 kmph body

= 60×t km

As traveling towards each other ,

so , 30t + 60t = 180

or, 90 t = 180

so, t = 2 hr

So, they will meet after 2 hr.

Answer 2

Distance between vehicles = 180 km

let t be the time to meet

distance travelled by 30 kmph body

= 30×t km

distance travelled by 60 kmph body

= 60×t km

As traveling towards each other ,

so , 30t + 60t = 180

or, 90 t = 180

so, t = 2 hr

So, they will meet after 2 hr.