Question 322092
Let the number be X.
{{{(1/2)X+(1/9)X+(1/12)X=25}}}
Multiply by a common denominator ({{{9*12*25=2700}}})
{{{1350X+300X+225X=67500}}}
{{{1875X=67500}}}
{{{highlight(X=36)}}}
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Verify the solution,
{{{(1/2)36+(1/9)36+(1/12)36=25}}}
{{{18+4+3=25}}}
{{{25=25}}}
True, good solution.