Official Guide Explanation:
Problem Solving #143




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Solution and Metadata

Question: 143
Page: 172
Difficulty: 5 (Moderate)
Category 1: Algebra > Symbolism >

Explanation: This symbolism question gives us a rule. To evaluate a number in brackets, we're to find the greatest integer less than or equal to the number inside the brackets.

-1.6 in brackets is -2.

3.4 in brackets is 3.

2.7 in brackets is 2.

The result, then, is -2 + 3 + 2 = 3, choice (A).

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