Last updated at Dec. 16, 2024 by Teachoo
Ex 3.3, 4 Using divisibility tests, determine which of the following numbers are divisible by 11: (c) 7138965 7 1 3 8 7 9 5 Sum of digits at odd Places = 5 + 7 + 3 + 7 = 22 Sum of digits at even Places = 9 + 8 + 1 = 18 Difference = 22 − 18 = 4 Since 4 is not divisible by 11 ∴ 7138965 is not divisible by 11
Ex 3.3
Ex 3.3, 2 (a) Important
Ex 3.3, 2 (b)
Ex 3.3, 2 (c) Important
Ex 3.3, 2 (d)
Ex 3.3, 2 (e)
Ex 3.3, 2 (f) Important
Ex 3.3, 2 (g)
Ex 3.3, 2 (h) Important
Ex 3.3, 2 (i)
Ex 3.3, 2 (j) Important
Ex 3.3, 3 (a) Important
Ex 3.3, 3 (b)
Ex 3.3, 3 (c) Important
Ex 3.3, 3 (d)
Ex 3.3, 3 (e) Important
Ex 3.3, 3 (f)
Ex 3.3, 3 (g) Important
Ex 3.3, 3 (h)
Ex 3.3, 3 (i) Important
Ex 3.3, 3 (j)
Ex 3.3, 4 (a)
Ex 3.3, 4 (b) Important
Ex 3.3, 4 (c) You are here
Ex 3.3, 4 (d) Important
Ex 3.3, 4 (e) Important
Ex 3.3, 4 (f)
Ex 3.3, 5 Important
Ex 3.3, 6 Important
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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo