Question

Mohan cycles to his school at an average speed of 12 km/hr. It takes him 20 minutes to reach the
school. If he wants to reach his school in 15 minutes, what should be his average speed?​

Answer 1

Answer

Speed= Distance/Time

⇒Distance=Speed×Time

So, distance to the school =12km/hr ×

20minutes=12km/hr× 20/60 hour=4 km

So, to cover distance 4km in 15minutes,

Speed= 4km/15min = ( 4km/ (15/60)hour =

16km/hr

Answer 2

Answer:

16km/hr

Step-by-step explanation:

Speed= Time

Distance

⇒Distance=Speed×Time

So, distance to the school =12km/hr×20minutes

= 12km/hr× 20 hour = 4 km

60

So, to cover distance 4km in 15minutes,

Speed= 4km = 4km = 16km/hr

15min 15 hours

60