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Math Help - Word Problem .. is this right

  1. #1
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    Word Problem .. is this right

    Four times a number increased by seven is 123. Find the number. This is what i did.


    Let x be the number

    4x+7=123

    If i am wrong please explain what i did wrong thank you guys.
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  2. #2
    Member CalcGeek31's Avatar
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    4x+7 = 123... yeah you are right.
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  3. #3
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    thanks a lot for the quick reply
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  4. #4
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    It is worded pretty poorly as it could also mean

    4(x+7) = 123

    As it is four times a number increased by seven.
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  5. #5
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    .....

    no ur confused because 4x means for times a number thats is unknow
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  6. #6
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    No I am correct.

    Both answers can be correct depending on how you read the statement. Unless you wrote the question down wrong!
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  7. #7
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    well your kind of correct but...

    Your kind correct too but the problem is that its says four times a unknown number (increased) well it says increased you have to apply the addition sign.
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  8. #8
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    ..

    Quote Originally Posted by RossBrons View Post
    No I am correct.

    Both answers can be correct depending on how you read the statement. Unless you wrote the question down wrong!
    No there is nothing wrong with the question and how i wrote is you want i can post the thread again and see what we get. I want to see if people agree with you.
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  9. #9
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    I can agree to disagree with you. I offered an alternate answer. As, if you read it out in your head it can sound like:

    Four times a (number increased by 7)

    Chill out on your flaming. It is highly counter productive.

    Regards,
    Ross

    Edit: The PM you just sent me is unecessary, i'm unlikely to provide you with any response next time if you are to send such things.
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  10. #10
    Super Member Aryth's Avatar
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    Ross is right. This question can be interpreted in two different ways.

    1:

    (Four times a number) (increased by seven) is 123. Find the number.

    4x + 7 = 123

    4x = 116

    x = 29

    2:

    (Four times)(a number increased by seven) is 123. Find the number.

    4(x + 7) = 123

    4x + 28 = 123

    4x = 95

    x = 23.75


    Though, it is MORE likely that the 1st interpretation is the correct one due to the lack of a decimal point.
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