Question
Download Solution PDFIf x = (164)169 + (333)337 – (727)726, then what is the units digit of x?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFUnit digit of (164)169 + (333)337 – (727)726
To check unit place divide power by 4
4169 + 3337 – 7726
⇒ 69/4 = Reminder 1
⇒ 37/4 = Reminder 1
⇒ 26/4 = Reminder 2
⇒ 41 + 31 – 72
⇒ 4 + 3 – 9
⇒ 7 – 9
or, 17 – 9
⇒ 8
So, the unit digit of number x is 8.Last updated on Jul 12, 2025
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