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SSC Selection Post 2022 PYQ — Question 63

SSC Selection Post - Matriculation Level - 3 Feb 2022 - Shift 3 • Quantitative Aptitude • Q63

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If N = (307)38 + (524)20 , then what is the unit digit of N?

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Correct answer: B

Explanation

The correct answer is Option 2 i.e. 5.

Unit digit of 738 = 9

Unit digit of 420 = 6 

9 + 6 = 15 ⇒ Unit digit 5