if the number of times spun is not a multiple of 8, it is impossible to land on an exactly even distribution for this spinner. But since the probabilities of landing on an exactly even distribution are so small, that detail doesn't perturb the overall trend, except perhaps down at n=8 spins So group 3
For 1/4 city, he takes = 200 steps
for a city, it is = 200 * 4 = 800
Now, for 4 1/2 = 9/2 city, he would take = 800 * 9/2 = 3600
In short, Your Answer would be 3600 steps
Hope this helps!
In 4 hours, Naoya must have read

There were 350 pages remaining at the time, so the total number of pages is

.
For each hour of reading, Naoya reads 55 pages, so the number of pages he's finished reading by the

'th hour is

. So the number of pages left to read is given by