Mining Engineering > GATE 2017 > Aptitude
The last digit of (2171)7+(2172)9+(2173)11+(2174)13 is
A
2
B
4
C
6
D
8

Correct : b

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Related Topics

unit digit calculation GATE Mining Engineering 2017 GATE 2017 Mining Q43 last digit of exponents cyclicity of numbers GATE general aptitude number system aptitude

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