Question

Cubes of the numbers ending in digits '9' is the number ends with: 

(1) 1 

(2) 7 

(3) 9 

(4) 3

Answer 1

Correct option is: (3) 9

Cube of a number ending in 9 will always end with 9.

Example:

\(9^3= 729\)

\(19^3 = 6859\)

\(29^3=24389\)