NCERT Solutions for Class 8 Maths<\/a> Chapter 16 Playing with Numbers Ex 16.2 Questions and Answers are prepared by our highly skilled subject experts.<\/p>\nNCERT Solutions for Class 8 Maths Chapter 16 Playing with Numbers Exercise 16.2<\/h2>\n Question 1. \nIt 21y5 is a multiple of 9, where y is a digit, what is the value of y? \nAnswer: \n21Y5 is a multiple of 9 \n\u2234 2 + 1 + y + 5 = 8 + y must be divisible by 9 \n(8 + y) should be 9, 18, 27,… etc. \nSince y is a digit. \n8 + y = 9 \ny = 9 – 8 = 1 \n\u2234 The value of y = 1.<\/p>\n
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Question 2. \nIf 31z5 is a multiple of 9, where Z is a digit. What is the value of z? You will find that there are two answers for the last problem. Why is this so? \nAnswer. \n31z5 = 3 + l + z + 5 = 9 + z \n31z5 is divisible by 9 \n\u2234 9 + z must be equal to 9, 18, 27,… etc. \nZ is a single digit number. \n9 + z is one of these numbers. \n9 + z = 9 then z = 0 \n9 + z=18 thenz= 18-9 = 9 \n\u2234 The value of z = 0 or 9.<\/p>\n
Question 3. \nIf 24x is a multiple of 3, where x is a digit, what is the value of x? \nAnswer: \nSince 24x is a multiple of 3, so sum of digits i.e. 6 + x is a multiple of 3. \n6 + x is one of these numbers: 0, 3,6, 9 12, 15, 18,… But since x is a digit, \n\u2234 6 + x = 6 or 9 or 12 or 15 \n\u2234 x = 0, or 3 or 6 or 9 \nThe value of x = 0 or 3 or 6 or 9<\/p>\n
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Question 4. \n31z5 is a multiple of 3, where z is a digit, what might be the values of z? \nAnswer: \nSum of the digits =3+l+z+5=9+z 9 + z is a multiple of 3 \nSo, 9 + z is one of the numbers: 0, 3, 6, 9, 12, 15,… \nBut since z is a digit, 9 + z = 9 or 12 or 15 or 18 or 21… \n\u2234 The Value of z = 0 or 3 or 6 or 9 or 15 or 18.<\/p>\n","protected":false},"excerpt":{"rendered":"
These NCERT Solutions for Class 8 Maths Chapter 16 Playing with Numbers Ex 16.2 Questions and Answers are prepared by our highly skilled subject experts. NCERT Solutions for Class 8 Maths Chapter 16 Playing with Numbers Exercise 16.2 Question 1. It 21y5 is a multiple of 9, where y is a digit, what is the …<\/p>\n
NCERT Solutions for Class 8 Maths Chapter 16 Playing with Numbers Ex 16.2<\/span> Read More »<\/a><\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","spay_email":""},"categories":[7],"tags":[],"yoast_head":"\nNCERT Solutions for Class 8 Maths Chapter 16 Playing with Numbers Ex 16.2 - MCQ Questions<\/title>\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\t \n\t \n\t \n