The number 4567 is tripled. The ones digit (units digit) in the resulting number is
(A) 5
(B) 6
(C) 7
(D) 3
(E) 1
The number 4567 is tripled. The ones digit (units digit) in the resulting number is
(A) 5
(B) 6
(C) 7
(D) 3
(E) 1

## Solution

If we wish to determine the units digit when we triple 4567 , it is only necessary to triple 7 and take the units digit of the number 21.

The required digit is 1 .

ANSWER: (E)