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If the least common multiple of two numbers is 225 and the highest common factor is 5 then find the numbers when one of the numbers is 25? 

This question was previously asked in
Bihar STET TGT (English) Official Paper-I (Held On: 05 Sept, 2023 Shift 1)
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  1. 75
  2. 65
  3. 15
  4. 45

Answer (Detailed Solution Below)

Option 4 : 45
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Detailed Solution

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Given:

LCM = 225, HCF = 5, and One of the number is 25.

Formula used:

First Number × Second Number = LCM × HCF

Calculation:

Let the second number be x.

First Number × Second Number = LCM × HCF

⇒ 25 × x = 5 × 225

⇒ x = (5 × 225)/25

⇒ x = 5 × 9 = 45

∴ The second number is 45.

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Latest Bihar STET Updates

Last updated on Jan 29, 2025

-> The Bihar STET 2025 Notification will be released soon.

->  The written exam will consist of  Paper-I and Paper-II  of 150 marks each. 

-> The candidates should go through the Bihar STET selection process to have an idea of the selection procedure in detail.

-> For revision and practice for the exam, solve Bihar STET Previous Year Papers.

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