Free GMAT Practice Question

Question 1 of 1
ID: GMAT-PSQ-034
Section: Quantitative Reasoning - Problem Solving
Topic: Unit digit
Difficulty level: Hard

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What is the units digit of $\left({23}^{23}\times {22}^{23}\right) + \left({27}^{28} \times {25}^{26}\right)$ ?

A1
B3
C5
D7
E8
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