<span>A=12+P
E=P-15
to find the difference,
A-E = 12+P -P+15 = 27</span>
You would put the 5 minutes over the 200 yard section
It's hard to tell from the way the question is written.
-- If he has 5 pennies, then it doesn't matter how many he lost.
He has five of them.
-- If he has 5 pennies after he lost three of them, then there are
eight now, just like there were before, but he only has 5 of them.
-- If he had 5 pennies before he lost three, then there are still
5 pennies, but he only has two of them.