It took David of an hour to bicycle
12 miles from his house to his friend's
house. He followed the same route home.
His average rate on the ride home was
3 mph faster than on his ride out. What
was David's average rate on the ride home?

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3