Accenture Company Numerical Ability Number System

Let C be a positive integer such that (C+7) is divisible by 5. Then the smallest integer n (>2) such that c+n² is divisible by 5 is
A) 3 B) 5 C) 1 D) Does not exist

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Accenture Other Question
Ratio of first and the fourth term of a GP is 8:27. If the first term is 12, what is the third term
1) 20 2) 16/3 3) 27 4) 12 At an examination in which full marks were 300. A got 10% less than B, B got 25% more than C and C got 20% less than D. If A got 360 marks, what percentage of full marks was obtained by D?
A) 90 B) 80 C) 60 D) 75 E) 95