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Numerical Inequalities · Question 44 of 79

Question 44

MediumOriginal question

Solve ∣x−3∣<2\lvert x - 3 \rvert < 2.

Options for question 44

Show the answer and explanation
CorrectNot quiteAnswer D

Correct answer: D

Explanation

  1. ∣u∣<2\lvert u \rvert < 2 means −2<u<2-2 < u < 2: −2<x−3<2-2 < x - 3 < 2.

  2. Add 3 throughout: 1<x<51 < x < 5, the numbers within 2 of 3.

Worth noting

'x<1x < 1 or x>5x > 5' is the solution of ∣x−3∣>2\lvert x - 3 \rvert > 2, the opposite.

Concept
A modulus inequation with less than
Typical time
90 s
Your time
—
The rule this testsSolving inequations
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Ten questions from Numerical Inequalities, at your own pace.

Practise this chapter →

Ten questions from Numerical Inequalities, at your own pace.