Question
What is the unit digit of (628−322)?
Answer: Option A
:
A
Unit digit of 628 is 6 and unit digit of 322 is 9 (since 22=4k+2). So, unit digit of given expression is (16−9)=7.
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:
A
Unit digit of 628 is 6 and unit digit of 322 is 9 (since 22=4k+2). So, unit digit of given expression is (16−9)=7.
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