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The LCM and HCF of two numbers are 120 and 3 respectively. One of these numbers is 24. What is the second number?
1. 30
2. 15
3. 20
4. 60

1 Answer

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Correct Answer - Option 2 : 15

Given:

The LCM and HCF of two numbers are 120 and 3

One of these numbers is 24

Formula used:

Product of two no. = product of their LCM and HCF

Calculation:

Let the other no. be p

So, 24 × p = 120 × 3

⇒ 24 × p = 360

⇒ p = 15

Therefore, the second number is 15

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