Question : What is the units digit of $279 + 167\times 342$?
Option 1: 1
Option 2: 3
Option 3: 5
Option 4: 8
Correct Answer: 3
Solution :
Unit place digit of 279 = 9
Unit place digit of 167 × 342 ⇒ 7 × 2 = 14 ⇒ 4
Unit place digit of 9 + 4 = 13 ⇒ 3
Hence, the correct answer is 3.
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