A student walks from his house at 5 km/hr and reaches his school 10 minute late. If his speed had been 6 km/hr he would have reached 15 minutes early. What is the distance between his school and house?
Answers
Answered by
0
LCM of 5KM/hr and 4KM/hr = 20 KMs
20 km —→ 5 km/hr —→ 4 hrs
20 km —→ 4 km/hr —→ 5 hrs
difference = 5 hrs - 4 hrs = 1 hr ( 60 mins)
time difference = 10 mins
so, 60 mins = 20 kms
for , 10 mins = 20 / 6 = 10 /3 kms
20 km —→ 5 km/hr —→ 4 hrs
20 km —→ 4 km/hr —→ 5 hrs
difference = 5 hrs - 4 hrs = 1 hr ( 60 mins)
time difference = 10 mins
so, 60 mins = 20 kms
for , 10 mins = 20 / 6 = 10 /3 kms
Similar questions