Ex 3.3, 4 (e) - Chapter 3 Class 6 Playing with Numbers
Last updated at April 16, 2024 by Teachoo
Ex 3.3
Ex 3.3, 1
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Transcript
Ex 3.3, 4 Using divisibility tests, determine which of the following numbers are divisible by 11: (e) 10000001 1 0 0 0 0 0 0 1 Sum of digits at odd Places = 1 + 0 + 0 + 0 = 1 Sum of digits at even Places = 0 + 0 + 0 + 1 = 1 Difference = 1 − 1 = 0 Since the difference is 0 ∴ 10000001 is divisible by 11
