The LCM of two numbers is 1710 and the H

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Question:

The LCM of two numbers is 1710 and the HCF of numbers is 57. How many pairs of number can be formed.

Options:

3 pairs

4 pairs

5 pairs

8 pairs

Correct Answer:

4 pairs

Explanation:

HCF × (Product of other factors) = LCM

57 × (a × b) = 1710

(a × b) = 30

Possible pairs (a, b) =

i) 1 , 30

ii) 2, 15

iii) 3, 10

iv) 5, 6

Therefore,

4 pairs can be formed.