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The product of two whole numbers is 1550, and their LCM is 5. Find the HCF. 

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RPF Constable 2024 Official Paper (Held On 06 Mar, 2025 Shift 3)
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  1. 155
  2. 310
  3. 300
  4. 150

Answer (Detailed Solution Below)

Option 2 : 310
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Detailed Solution

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Given:

Product of two whole numbers = 1550

LCM = 5

Formula used:

Product of two numbers = LCM × HCF

Where, HCF = Highest Common Factor

Calculation:

1550 = 5 × HCF

⇒ HCF = 1550 / 5

⇒ HCF = 310

∴ The correct answer is option (2).

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