Solve my math word problem

I have a math word problem involving percents. What percentage difference is the number 25 from the number 40?

6 Answers


  1. The percentage difference between two numbers is usually defined like this: |A-B|/B*100

    where A is the number in question, (in this case the 25), and B is the number to which 25 is being compared, in this case, the 40.

    The vertical bars in |A-B| mean after subtracting the two numbers, take the absolute value of the result. (In case you don’t remember, an absolute value means to drop a minus sign if the answer is negative.)

    So, to find your answer, 25-40 is -15, and the absolute value of -15 is 15.

    Now, divide the 15 by 40 to get 0.375.

    Finally, multiply the 0.375 by 100 to convert it to a percent (0.375 times 100 is 37.5).

    Or, 25 differs from 40 by 37.5%.

    Sometimes the percentage difference can also mean the “percentage change” between two numbers, in which case you could say:

    There is a 37.5% change between 25 and 40.

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  1. Hi guys. I need to write a word problem… Help please.

    During the 2016 football season, Team Tackle beat Team Sack by 16 points. If their combined scores totaled 78 find the individual team scores.

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  1. Team Sack scored x points
    Team Tackle scored (x + 16) points

    x + (x + 16) = 78
    2x + 16 = 78
    2x = 78 – 16
    2x = 62
    x = 31

    Team Sack scored 31 and Team Tackle scored 31 + 16 = 47
    The score was 47-31 in favor of Team Tackle

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  1. How do you solve this math word problem?

    Amanda has saved 380 coins, consisting of 10 cents and 5 cents coins. If the total value of her savings is 30 dollars, how many 5 cents coins did she save?

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  1. 100 cents are equal to 1 dollar.
    30 dollars = 3000 cents

    Let x is amount of 10-cents coins and y is amount of 25-cents coins.

    x+y = 380
    10x+5y = 3000

    Solving the system of equations:

    y = 380 – x

    10x+5y = 3000
    y = (3000 – 10x)/5
    y =600 – 2x

    380 – x = 600 – 2x
    -x + 2x = 600 – 380
    x = 220

    y = 380 – 220
    y = 160

    Amanda has saved 160 coins at 5 cents.

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