The answer is 420.
Work Step by Step
Let X be the number we are looking for. 30% of what number means 30% $\times$ X. So, this question translates to: 30% $\times$ X = 126 0.3 $\times$ X = 126 Divide both sides by 0.3 X = 420
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.