Lessons

General Aptitude
9.1 Numbers - General Questions

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Q.

What is the unit digit in 7105 ?

View Answer

Correct choice: C

Explanation:

Unit digit in 7105 = Unit digit in [ (74)26 x 7 ]

But, unit digit in (74)26 = 1

∴ Unit digit in 7105 = (1 x 7) = 7

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