a car covers certain distance in 50 minutes if it runs at 45 km per hour how much time will it take to cover the same distance at the speed of 30 km per hour
Answers
= 45* 5/18 =25/2
d=s*t
= 50×60×25/2=625×60
= 37500m=37.50km
t=?
d= 37500m
s=30×5/18=25/3
t=d/s=37500×3/25=4500s
h=4500/60×60=5/4=1 1/4= 1hour 15minutes
Answer: time taken is 1.25 hours or 75 minutes
Step-by-step explanation: since speed = distance/time
distance = speed x time
= 45 x 5/6 (50 min = 50/60 hrs)
distance = 30 x t (let required time be t)
Since the distance covered is same ,
45 x 5/6 = 30 x t
15 x 5/2 = 30 x t
15 x 5/60 = t
5/4 = t
t = 5/4 hours
t = 1.25 hours or 75 minutes