The product of two consecutive positive whole numbers is 156. What is the smaller number?
Correct answer: B. 12
Since 12 × 12 = 144 and 13 × 13 = 169, the numbers lie around 12 and 13. Check: 12 × 13 = 156, so the smaller number is 12.
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Answer and explanation
The correct answer is B. 12
Since 12 × 12 = 144 and 13 × 13 = 169, the numbers lie around 12 and 13. Check: 12 × 13 = 156, so the smaller number is 12.
Topic: Age and Number Problems MCQs · Subject: Numerical Ability