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  1. Chapter 16 Class 8 Playing with Numbers
  2. Serial order wise

Transcript

Sum of digits = 1 + 5 + 2 + 8 + 7 + 5 = 28 Since 28 is not divisible by 9, ∴ 152875 is also not divisible by 9. We know that, A Number is divisible by 9, if sum of digits is divisible by 9 24x Sum of digits of 24x = 2 + 4 + x = 6 + x Let us check different values of x & check if number is divisible by 9 Sum of digits = 6 + x Sum of digits = 6 + x Value of x is 3

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.