Q142
What is the unit digit in (6374)1793 x (625)317 x (341491)?
A.
0
AnswerB.
2
C.
3
D.
5
Answer: Option A
Solution
Answer: Option A
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 (625)317
= Unit digit in (5)317
= 5
Unit digit in (341)491
= Unit digit in (1)491
= 1
Required digit
= Unit digit in (4 x 5 x 1)
= 0