Question 1153454
let the number be {{{x}}}

one-quarter of a number,:{{{x/4}}}

 one-half of the same number:{{{x/2}}}

if {{{x/4}}} increased by {{{x/2}}} is twelve, we have

{{{x/4+x/2=12}}}.....both sides multiply by {{{4}}}

{{{4x/4+4x/2=4*12}}}

{{{x+2x=48}}}

{{{3x=48}}}

{{{x=48/3}}}

{{{x=16}}}


the number is {{{16}}}