Number System · Question 1 · Easy
What is the unit digit of 7^95?
- 1
- 7
- 3
- 9
Answer and explanation
Answer: C. 3
Explanation: Unit digits of powers of 7 repeat in the cycle 7, 9, 3, 1. Since 95 = 4 × 23 + 3, the unit digit is the 3rd in the cycle, which is 3.
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