Question

anand leaves his house at 8:30 am for his school the school is 2 kn away and classes start at 9:00am . if he walks at a speed of 3 km per hour for the first km ,at what speed should he walk the 2nd km yo reach just in time

Answer 1

If Anand walks at a speed of 3km/hr for the first km ,then he travel the first km in 20 minute.
Now only ten minutes are left to cover the 2nd km to reach to the school, so the speed should be 6km/hr