Level 3
Esther spent 12 of her money on some pies and 37 of her remaining money on 8 buns. Each bun cost thrice as much as a pie. How many pies did she buy?
Level 2
One ticket to the SEA games sports match was sold at $8. To promote the event, 3 tickets were given free for 20 tickets purchased. If John wanted to buy 46 tickets in all, what was the least amount of money he had to spend?