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3×2 Divisible by 11? - Mathematics

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Question

3×2 divisible by 11?

Sum

Solution

Sum of the digit in even place = x

and sum of the digits in odd place = 3 + 2 = 5

Difference of the sum of the digits in even places and in odd places = x – 5

3×2 is a multiple of 11

⇒ x – 5 = 0, 11, 22,

⇒ x = 5, 16, 27,

Since, x is a digit x = 5

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Chapter 5: Playing with Numbers - Exercise 5 (D) [Page 62]

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Selina Concise Mathematics [English] Class 8 ICSE
Chapter 5 Playing with Numbers
Exercise 5 (D) | Q 10 | Page 62
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