If n = (79-6), what is the units digit of n?

If n = (7⁹-6), what is the units digit of n?

A 7

B 2

C 0

D 1

Correct Answer: Option D

79 = 40353607

Then,

(79-6) = 40353607 - 6 = 40353601

Unit digit means the first digit from the right. বাংলায় যাকে একক ঘরের সংখ্যা বলে।

Here the unit digit is 1.