Level 3
A confectionery baked a total of 362 chocolate, vanilla and strawberry buns. There were 134 more chocolate buns than strawberry buns but 20 less vanilla buns than chocolate buns. How many chocolate buns did the confectionery produce?
Level 3
An refrigerator, a oven and a TV cost $470. The TV cost $85 more than the refrigerator. The refrigerator cost $55 more than the oven. What was the cost of the oven?
Level 3
Kim had some stickers at first. After he bought another 48 stickers, he had thrice as many stickers as before. How many stickers did Kim have at first?