2012 AMC 12B Problem 1

Below is the professionally curated solution for Problem 1 of the 2012 AMC 12B, from LIVE by Po-Shen Loh. You can also try the full timed exam, view all 2012 AMC 12B solutions, or check the answer key.

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Concepts:whole number operations

Difficulty rating: 560

Each third-grade classroom at Pearl Creek Elementary has $18$ students and $2$ pet rabbits. How many more students than rabbits are there in all $4$ of the third-grade classrooms?

$48$

$56$

$64$

$72$

$80$

Solution:

Each classroom has $18-2=16$ more students than rabbits.

Across all $4$ classrooms there are $4\cdot16=64$ more students than rabbits.

Thus, the correct answer is C.

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