In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[Q]: Problem: tough and tricky questions : number properties . what is the smallest positive integer x such that 1512 x is the cube of a positive integer ?
Options: a ) 7 , b ) 14 , c ) 28 , d ) 35 , e ) 49
[A]: e

[Q]: Problem: the radius of a cylinder is 10 m , height 15 m . the volume of the cylinder is :
Options: a ) 2200 , b ) 5500 , c ) 3300 , d ) 1100 , e ) 4714.3
[A]: e

[Q]: Problem: if the height of a triangle is decreased by 40 % , land its base is increased by 40 % , what will be the effect on its area ?
Options: ['a ) no change', 'b ) 16 % increase', 'c ) 8 % decrease', 'd ) 16 % decrease', 'e ) none of thes']
[A]:
d