Correct Answer - Option 4 : 8
Given:
The given expression is (11 + 22 + 33)3
Concept used:
Basic concept of power and number system
Calculation:
⇒ (11 + 22 + 33)3
The unit digit of 11 = 1
The unit digit of 22 = 4
The unit digit of 33 = 7
Now, sum of all digits = 1 + 4 + 7 = 12
∴ the unit digit of (12)3 = 1728
So, the unit digit of expression (11 + 22 + 33)3is 8
Hence, option (4) is correct