The units digit of (1997)3A) 10 B) 3 C) 9 D) 4

1.	The units digit of (1997)3A) 10 B) 3 C) 9 D) 4
Answer» Correct option is B) 3 Correct option is (B) 3 \(\because\) Unit's digit in 1997 is 7. \(\therefore\) Unit's digit in \((1997)^3\) is unit's digit in \(7^3=3.\) \((\because7^3=343\Rightarrow\) unit's digit in \(7^3\) is 3)

Answer»

Correct option is B) 3

Correct option is (B) 3

\(\because\) Unit's digit in 1997 is 7.

\(\therefore\) Unit's digit in \((1997)^3\) is unit's digit in \(7^3=3.\)

\((\because7^3=343\Rightarrow\) unit's digit in \(7^3\) is 3)

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