### What is 35 percent of a number if12 is 15 percent of a number?

There is a quick way to solve many of these questions. A quick way to do this in your head, is to break down the result. You want 35% You have 15% What is 35%? Two 15%(30) and 1/3rd of a 15%(5). If you double the known number, you get the answer to the question of 30% of the number is 12 is 15% of it. So, 12 + 12 is 30% Now you are…