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3×26 a Multiple of 6? - Mathematics

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Sum

3×26 a multiple of 6?

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Solution

3×26 is a multiple of 6

3 + x + 2 + 6 is a multiple of 3

⇒ 11 + x = 0, 3, 6, 9, 12, 15, 18,21,

⇒ x = -11, -8, -5, -2, 1, 4, 7, 10, ….

Since, x is a digit

x = 1, 4 or 7

Concept: Tests for Divisibility of Numbers - Divisibility by 6
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APPEARS IN

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