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

 

Slide25.JPG


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)

Ask a doubt
Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.