Answered

Ex4 Lucy leaves home at 08:00. She walks at a speed of 4mph for 15 minutes
before immediately running at 8mph
for a further 45 minutes.
She then stops for half an hour. Lucy
then sets off home and arrives at 10:45.

[a] How long in total was the cyclist
stationary during his journey?

[b] How far did the cyclist travel in total?
Distance from home (miles)