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1. n is a whole number which when divided by 4 gives 3 as remainder. What will be the remainder when 2n is divided by 4 ?
(A): 0
(B): 1
(C): 2
(D): 3
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By: guest on 01 Jun 2017 05.46 pm
Let n = 4q + 3. Then 2n = 8q + 6 = 4(2q + 1 ) + 2. Thus, when 2n is divided by 4, the remainder is 2.
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