DAY 07

Comment

Mr Lee reaches the letter box when he has covered half the total distance.
Does this take less than or more than half the total time?

 

Answer

His average speed was greater on the way out than on the way back.

 

Readers' methods

Jackie T, Chard TA20:
If you ignore the bumps, the graph gets gradually flatter.
So Mr Lee's average speed gets gradually slower.

Pupils from Holgate Comprehensive School, Hucknall, Nottinghamshire:
2.5 blocks of time, outbound. This is faster than 3.5 blocks of time, inbound.