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    Name:  Screen Shot 2015-09-09 at 19.04.09.png
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    (Original post by kieronhawke)
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    Do you understand what the question is asking you?

    Do you recognize the square numbers up to 100 say?
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    I just don't know what the question is asking me?

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    It's 76. This sort of question is designed to be one where you try every individual option given and then work out the answer as a process of elimination.
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    9^2=81
    81-5=76
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    what I did to work it out was add 5 to each of the answers, and then I straight away recognized 81 as being a square number. It really helps if you learn the first 12 or so square numbers especially for Alevel
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    (Original post by kieronhawke)
    I just don't know what the question is asking me?

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    Have you got it now from the help given by the other posters?

    There's nothing subtle going on in this question - it really is just a question of adding 5 to each of the numbers until you get one you recognize as being a square.
 
 
 
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