1.

The remainder when 321 is divided by 5 is1). 12). 23). 34). 4

Answer»

⇒ Last DIGIT of 34 = 1

⇒ 321 = (34)5 × 31

⇒ last digit of 321 = 1 × 3 = 3

∴ 3 when divided by 5 will give REMAINDER = 3


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