# Can you guys help me with these puzzles?

1) If a teenager and a half can eat a pizza and a half in a day and a half, how many pizzas can a dozen teenagers eat in three days?

2)You have twelve coins, one of which is counterfeit and weighs less than the legal coins. How can you use a simple balance three times to determine which coin is counterfeit?

& can you explain HOW you got the answer? Thankkss!

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