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Example 6 - If the three digit number 24x is divisible by 9

Example 6 - Chapter 16 Class 8 Playing with Numbers - Part 2

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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 has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.