Insert two operators — Make 65 ▢ 40 ▢ 11 equal 36 by choosing the correct pair of signs
Verbal Reasoning
Mathematical Operations
Difficulty: Easy
Choose an option
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A- and +
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Bx and ÷
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C÷ and +
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D+ and x
Answer
Correct Answer: - and +
Explanation
Introduction / Context:We choose two operators to achieve 36. Consider subtraction then addition to pull 65 down towards 36.
Given Data / Assumptions:
- Expression: 65 ▢ 40 ▢ 11 = 36.
Concept / Approach:Try 65 − 40 + 11 = 36.
Step-by-Step Solution:
Compute: 65 − 40 + 11 = 25 + 11 = 36.Verification / Alternative check:Other operator pairs overshoot or undershoot the target.
Why Other Options Are Wrong:
- They fail to evaluate to 36 under standard precedence.
Common Pitfalls:
- Trying multiplication/division first, which pushes the value far from 36.
Final Answer:- and +