Question

if same radius his bike 3 km in 15 minutes how for will he ride in one hour​

Answer 1

Answer:

In 15 minute his bike can go 3 kilometre

then in next 15 minute it will go 3 km that means 3km +3km= 6km the half an hour has completely gone

and in next 15 minute it will go 3 km again and 6 km + 3 km is equal to 9 kilometre

and again 15 minutes the bike will go 3 km 9km + 3 km is equal to 12km and 1hour is completed

hence answer is 12 km