Question: Ellie takes her little brother down to the pond to teach him how to skip stones. After he takes his first throw, she gives him pointers to improve his technique. His second throw skips two more times across the water than his first. His third throw skips twice as many times as his second. His fourth throw skips 3 fewer times than his third throw. His fifth throw skips one more time than the fourth throw. If his fifth throw skipped 8 times across the water, how many skips did he make in total between all of his throws?
Solution:
His fourth throw made 8 - 1 = 7 skips.
His third throw made 7 + 3 = 10 skips.
His second throw made 10 / 2 = 5 skips.
His first throw made 5 - 2 = 3 skips.
The total number of skips is 8 + 7 + 10 + 5 + 3 = 33 skips.
Answer: 33