What is the smallest positive integer x such that 120-x is the cube of a positive integer? Choose the most appropriate option.
A) 10 B) 6 C) 5 D) 0 E) 1
Given 130-x is a perfect cube   so we will take 125 = 5*5*5   130-x = 125   x = 130-125= 
<gadget id="calculator">130-125</gadget>
<output>5</output>
5   correct option is 5
<result>C</result>
What is the smallest positive integer x such that 120-x is the cube of a positive integer?