Unit digit in (264)102 + (264)103 is :

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Unit digit in (264)¹⁰² + (264)¹⁰³ is :

1. 0
2. 4
3. 6
4. 8

Correct Option: A

Unit digit in (264)⁴ 4 × 4 × 4 × 4 is 6
∴ Unit digit in (264)¹⁰⁰ is also 6.
Now, (264)¹⁰² = (264)¹⁰⁰ × (264)²
= (Unit digit 6) × (Unit digit 6) = 36
∴ Unit digit is 6
Similarly

Therefore, the unit digit in (264)¹⁰² + (264)¹⁰³ is 6 + 4 = 10 i.e. 0.