The LCM of two numbers is 168 and their

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Question:

The LCM of two numbers is 168 and their HCF is 12. If the difference between the numbers is 60, then the sum of the numbers is?

Options:

84, 24

85, 25

89, 29

94, 34

Correct Answer:

84, 24

Explanation:

LCM = HCF (a × b)

168 = 12 (a × b)

ab = 14, ⇒ a = 7, b = 2 (possible factors)

So, numbers are⇒ 12a, 12b

⇒ 12 × 7, 12 × 2 = 84, 24