A and B travel from home to school and back once a day. How much more distance does B travel from Monday to Friday?
10 km
Monday to Friday = 5 days
Distance travelled by A in 1 day
Distance travelled by B in 1 day
Total distance travelled by A in 5 days
= 2×5=10 km
Total distance travelled by B in 5 days
= 4×5=20 km
So, B travels (20−10) km = 10 km more than A from Monday to Friday.