Verified answer

If q represents some number,

then the product of some number and 24 % would be:

(.24) * q

You gave q as the result (product) of another number (you called it 'x') and 24 %

Look at the sentence again !

If q represents some number, then the product of 24% and q would be 0.24q = x.

The product is what you get after multiplying. You mixed up q and x. The right answer should be 0.24q=x.