If LCM (x, 18) = 36 and HCF (x, 18) = 2, then x is

(a) 2   (b) 3   (c) 4   (d) 5

 

This question is inspired from Question 1 (Choice - 1) - CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard

 

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  1. Class 10
  2. Solutions of Sample Papers for Class 10 Boards

Transcript

Question 12 If LCM (x, 18) = 36 and HCF (x, 18) = 2, then x is (a) 2 (b) 3 (c) 4 (d) 5 We know that LCM × HCF = Product of 2 numbers Putting values 36 × 2 = x × 18 36 × 2 × 1/18 = x 2 × 2 = x 4 = x x = 4 So, the correct answer is (c)

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.