General Basic Math Exams Quizzes MCQs Quizzes Whole Numbers Math Quiz

Question:
What is the unit digit in {(6374) 1793 x (625) 317 x (341491)}?

Option A):
2
Option B):
3
Option C):
5
Option D):
0

Correct Answer is Option D):
0

Explanation:
Solution:
Unit digit in (6374)1793 = Unit digit in (4)1793
= Unit digit in [(42)896 x 4]
= Unit digit in (6 x 4) = 4
Unit digit in (341)491 = Unit in digit (1)491 =1
Required digit = Unit digit in (4 x 5 x 1) = 0