### Brain Teasers

# Skateboarding

When you repeat a trick, the point value of the trick decreases by ½. Kickflips are worth 360 points the first time you do them and melons are worth 20% more the first time you do them. Jason likes to skate. One day he got 1278 points doing only 5 melons and kickflips. How many of each trick did Jason do?

### Answer

3 kickflips and 2 melons.Kickflips are worth 360 points the first time you do them and melons are worth 20% more the first time you do them, so melons are worth 432 points. One of the ways to do this teaser is with guess and check. If you have three kickflips, each one ½ of the previous one, then you would have 360 points for the first one, 180 points for the second one, and 90 points for the third. If you add all these together, you would have 630 points for the kickflips. For the melons, the first one is 432 points and the second is 216 points. If you add them together you get 648 points. if you add 630 of the kickflips and 648 of the melons, you get 1278 points in all.

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