Slide15.JPG

Slide16.JPG

Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class


Transcript

Question 7 (Introduction) The LCM of two numbers is 2400. Which of the following CANNOT be their HCF ? (a) 300 (b) 400 (c) 500 (d) 600Let’s consider numbers 6 and 27 HCF of 6 and 27 = 3 LCM of 6 and 27 = 54 We note that HCF is a factor of LCM i.e. LCM can be divided by HCF Thus, LCM can always be divided by HCF Question 7 The LCM of two numbers is 2400. Which of the following CANNOT be their HCF ? (a) 300 (b) 400 (c) 500 (d) 600We know that LCM can be always divided by HCF Here, For option (a): 2400 is divisible by 300. So, it can be HCF For option (b): 2400 is divisible by 400. So, it can be HCF For option (c): 2400 is not divisible by 500. So, it cannot be HCF For option (d): 2400 is divisible by 600. So, it can be HCF 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 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.