The least common multiple of a and b is

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Home Questions EHFHT3HAT3

Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

HCF and LCM

Question:

The least common multiple of a and b is 42. The LCM of 5a and 11b is :

Options:

2310

4620

210

462

Correct Answer:

2310

Explanation:

The least common multiple of a and b is 42

According to the question,

LCM(a, b) = 42

LCM(5a, 11b) = LCM{LCM(5,11)(a,b)}

LCM(5a, 11b) = 5 × 11 × 42 = 2310