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    				| 1. | The units digit in the square of 431 is ………………… A) 3 B) 7 C) 0 D) 1 | 
| Answer» Correct option is D) 1 Correct option is (D) 1 \(\because\) Unit's digit in 431 = 1 \(\therefore\) Unit's digit in \((431)^2=1.\) \((\because\) Cyclicity of 1 is 1) | |