Question

a car covers takes 2 hours 80 minute to travel a distance of 180 km .hom much distance will it cover in 1 hours 30 minutes if its speed remain constant​

Answer 1

Answer:

81 km/hr

Step-by-step explanation:

I case :

v=s/t

2 hours 80 minute = 3 hours 20 minutes

= 3 + 1/3 hours = 10/3 hours

v= 180/10/3

v=180*3/10

v=18*3 = 54km/hr

II case :

v=54km/hr

t = 1 hour 30 min

t = 1.5 hours

s = v*t

s = 54 * 1.5

s = 81 km Ans.