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Next CSE-PPT: 14 March 2027

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Twice a number, increased by 9, equals 37. What is the number?

Correct answer: B. 14

Write 2n + 9 = 37. Subtract 9: 2n = 28, so n = 14. Check: 2 × 14 + 9 = 37. Translate each phrase in order: "twice a number" is 2n, and "increased by 9" adds 9. The option 23 comes from subtracting 9 from 37 and stopping there, without halving.

easy

Answer and explanation

The correct answer is B. 14

Write 2n + 9 = 37. Subtract 9: 2n = 28, so n = 14. Check: 2 × 14 + 9 = 37. Translate each phrase in order: "twice a number" is 2n, and "increased by 9" adds 9. The option 23 comes from subtracting 9 from 37 and stopping there, without halving.

Topic: Age and Number Problems MCQs · Subject: Numerical Ability