Post your riddles here =]
The Ninja Shop has a new item! Get a Special Explosive Tag, and the case to hold it, for only 510 Ryo. You ask how much the tag is, and they say it costs exactly 500 more than the case does. You just want the case. If you give them 100 Ryo for it, how much change should you get back?
Here's a hint: Make sure that the prices you've came up with agree with everything in the question. Is the Tag exactly 500 more than the case? If so, how much is the case by itself? Note: THE ANSWER IS NOT 90. 10 is NOT 500 less than 500, it is 490 less than 500. What two numbers that add up to 510 are 500 apart from each other?