Question 8 - MCQs from NCERT Exemplar - Chapter 1 Class 10 Real Numbers

Last updated at Dec. 16, 2024 by

If two positive integers a and b are written as  a = x 3 y2 and b = xy 3 ; x, y are prime numbers, then  HCF (a, b) is:

(a)xy                         

(b) xy 2

(c) x 3 y 3                    

(d) x2 y 2

 

If a = x3 y2 and b = xy3; x, y are prime numbers, then HCF (a, b) is: - MCQs from NCERT Exemplar

Remove Ads

Transcript

Question 8 If two positive integers a and b are written as a = x3 y2 and b = xy3; x, y are prime numbers, then HCF (a, b) is: xy (b) xy2 (c) x3 y3 (d) x2 y2 Since a = x3 y2 = x . x . x . y . y b = xy3 = x . y . y . y Thus, HCF = x . y . y = xy2 So, correct answer is (B)

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 and Computer Science at Teachoo