Given that a < b and b < 12, what is the highest possible integer value of a + b?

Correct answer marked below

A

20

B

21

C

22

23

Correct

E

24

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Official Explanation

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Since a < b and b < 12, we need to find the maximum value of a + b. The maximum value for b is 11.9999, and for…

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What this question tests

Your ability to solve and combine linear inequalities and reason about ranges of values.

Failing to flip the inequality sign when multiplying or dividing by a negative, or missing an inclusive/exclusive endpoint.

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