Quantitative Aptitude Ques 212

Question: When ’n’ is divisible by 5, the remainder is 2. What is the remainder when $ n^{2} $ divided by 5?

Options:

A) 2

B) 3

C) 1

D) 4

Show Answer

Answer:

Correct Answer: D

Solution:

  • Number $ =5n+2 $ So, $ {{(5n+2)}^{2}}=25n^{2}+10n\times 2+4=25n^{2}+20n+4 $ So, remainder is 4.
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