Question

A car covers a certain distance in 40 minutes if it runs at 54km/hr.How much time will take to cover the same distance at a speed of 45km/hr?

Answer 1

let the time taken by car to cover the. distance at a speed of 45km/hours =x distance =40 x time taken =54. 45 it is an inverce variation. x*45=54*40 X=54*40 /45 x=48

Answer 2

Answer:

Step-by-step explanation:

S = 54km/hr

T = 40 mins

D = x

D = S * T (54 * 40)

                 60

D = 36km

S = 45km/hr

T = x

D = 36km

T = D

     S

T = 36 = 4

     45    5

T = 4/5 hr