Sorry

This answer is incorrect.

To complete this problem, you must first understand some common words and their meaning in mathematics.

• "Is" means equals (=)
• "Of" means to multiply (x)
• "What" means the unknown (A, B, X, Y, etc.)

With that in mind, the first problem would translate to:

10 = Y x 50,

which is normally written as:

10 = 50Y

Now all that is required is to solve for the unknown. In this case divide both sides of the equation by 50.

10 divided by 50 = 50Y divided by 50

0.2 = Y

Because the orginal problem asked for a percentage, the 0.2 must be converted to a percentage.

To convert a decimal to a percentage, move the decimal point two places to the right and add a percent sign.

In this case, 0.2 becomes 20%.

You would then proceed to the next answer until you find one that is equal to the desired 25%.

If you find that the fourth answer is the correct answer, 20 = 80Y, d ivide both sides of the equation by 80.

0.25 = Y

0.25 converted to a percentage yields the desired 25%.

Now let's try another one.

Which problem has an answer of 35%?

• 10 is what percent of 35?
• 9 is what percent of 22?
• 7 is what percent of 20?
• 5 is what percent of 25?

Web Related: David.Mazza@grc.nasa.gov
Technology Related: Thomas.J.Benson@grc.nasa.gov
Responsible NASA Official: Theresa M. Scott (Acting)