Nick hides 10 chocolates in his closet. His brother Alix hides 3 times as many chocolates than Nick hides. Last night, their mom found and took 5 chocolates from Alix. How many more chocolates does Alix have than Nick? Let's be accurate as possible.
Alix has 3 * 10 = 30 chocolates. After his mom took 5 chocolates, Alix has now 30 - 5 = 25 chocolate. So Alix has 25 - 10 = 15 chocolates more than Nick.
The answer: 15.