isi-entrance 2016 Q67

isi-entrance · India · UGB 4 marks Number Theory Properties of Integer Sequences and Digit Analysis

The digit in the unit's place of the number $1 ! + 2 ! + 3 ! + \ldots + 99 !$ is
(A) 3
(B) 0
(C) 1
(D) 7

The digit in the unit's place of the number $1 ! + 2 ! + 3 ! + \ldots + 99 !$ is\\
(A) 3\\
(B) 0\\
(C) 1\\
(D) 7