a student reaches her school in 20 minutes with an average speed of 12 km per hour if she wants to reach her school 8 minute earlier Her speed should be
Answers
Answered by
10
Her speed is increased
Answered by
26
a student reaches her school in 20 min with an average speed 12km/hour
1 min speed 20/12 km/hour
(20-8)=12 min average speed (20/12)×12=20 km/hour
1 min speed 20/12 km/hour
(20-8)=12 min average speed (20/12)×12=20 km/hour
Similar questions