2012 AMC 12B Problem 1

Problem 1 of 25EasierAlgebra

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?

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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.

Concepts: whole number operations

Problem text and solution from the LIVE past-contest archive. See also the AoPS wiki page for community solutions.