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1. How many 3 digit numbers are divisible by 6 in all ?
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By: guest on 01 Jun 2017 05.46 pm
Required numbers are 102, 108, 114, ... , 996 This is an A.P. in which a = 102, d = 6 and l = 996 Let the number of terms be n. Then, a + (n - 1)d = 996 102 + (n - 1) x 6 = 996 6 x (n - 1) = 894 (n - 1) = 149 n = 150.