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Solve this maths puzzle

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  • 23-04-2016 8:42am
    #1
    The Raptor
    Closed Accounts Posts: 1,433 ✭✭✭


    Can anyone help me solve this maths puzzle?

    I keep getting 104 but most people are getting 105.


«134

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    #2
    Quandary
    Registered Users Posts: 5,295 ✭✭✭Quandary


    105 is correct. You are probably missing the subtraction in line 3 and adding instead.


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    #3
    retweet
    Registered Users Posts: 275 ✭✭retweet


    105 is right. On the third line, you're probably adding the goat as 99kg, it's 100kg.


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    #4
    gumbo1
    Registered Users Posts: 681 ✭✭✭gumbo1


    Cat = 4kg
    duck = 1kg
    sheep = 100kg

    105 is correct!


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    #5
    The Raptor
    Closed Accounts Posts: 1,433 ✭✭✭The Raptor


    Quandary wrote: »
    105 is correct. You are probably missing the subtraction in line 3 and adding instead.

    I'm not missing it.

    The sheep minus duck equals 99kg. But if you were to add the duck back on it would be 100 kg. So 100kg for the sheep plus duck. Minus the duck equals 99kg for the sheep.


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    #6
    The Moldy Gowl
    Closed Accounts Posts: 19,889 ✭✭✭✭The Moldy Gowl


    That's pretty easy


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    #7
    gumbo1
    Registered Users Posts: 681 ✭✭✭gumbo1


    The Raptor wrote: »
    I'm not missing it.

    The sheep minus duck equals 99kg. But if you were to add the duck back on it would be 100 kg. So 100kg for the sheep plus duck. Minus the duck equals 99kg for the sheep.

    There's your mistake. Your taking that the duck and sheep is = 100kg, it's not. It's 101kg!


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    #8
    Quandary
    Registered Users Posts: 5,295 ✭✭✭Quandary


    The Raptor wrote: »
    I'm not missing it.

    The sheep minus duck equals 99kg. But if you were to add the duck back on it would be 100 kg. So 100kg for the sheep plus duck. Minus the duck equals 99kg for the sheep.

    You are thinking about it incorrectly.

    Sheep - Duck = 99kg
    100kg - 1kg. = 99kg

    Therefore Sheep is 100kg


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    #9
    Sheep Lover
    Closed Accounts Posts: 1,730 ✭✭✭Sheep Lover


    The Raptor wrote: »
    I'm not missing it.

    The sheep minus duck equals 99kg. But if you were to add the duck back on it would be 100 kg. So 100kg for the sheep plus duck. Minus the duck equals 99kg for the sheep.

    Er no.

    Sheep = 100kg
    Sheep - duck = 99 kg
    Sheep + duck = 101 kg


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    #10
    hidinginthebush
    Closed Accounts Posts: 2,679 ✭✭✭hidinginthebush


    The Raptor wrote: »
    I'm not missing it.

    The sheep minus duck equals 99kg. But if you were to add the duck back on it would be 100 kg. So 100kg for the sheep plus duck. Minus the duck equals 99kg for the sheep.

    ಠ_ಠ

    Sheep - duck = 99
    Duck = 1

    Move the duck to the other side and we get:

    Sheep = 99 + duck
    Sheep = 99 + 1
    Sheep = 100


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    #11
    Sono
    Registered Users Posts: 2,388 ✭✭✭Sono


    Jaysus I thought this might be a teaser on a sat morning, left disappointed!


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    #12
    fatknacker
    Registered Users Posts: 2,342 ✭✭✭fatknacker


    Only geniuses can solve


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    #13
    ezra_pound
    Registered Users Posts: 2,497 ✭✭✭ezra_pound


    The Raptor wrote: »
    I'm not missing it.

    The sheep minus duck equals 99kg. But if you were to add the duck back on it would be 100 kg. So 100kg for the sheep plus duck. Minus the duck equals 99kg for the sheep.

    What you're missing that -1+1=0
    Your logic assumes that -1+1=1


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    #14
    The Moldy Gowl
    Closed Accounts Posts: 19,889 ✭✭✭✭The Moldy Gowl


    The Raptor wrote: »
    I'm not missing it.

    The sheep minus duck equals 99kg. But if you were to add the duck back on it would be 100 kg. So 100kg for the sheep plus duck. Minus the duck equals 99kg for the sheep.

    No.
    The sheep minus duck is 100 - 1 which is 99. Take the duck out of that equation and the sheep is 100.
    It already tells us a cat and duck is 5 and we worked out the cat is 4

    So it's 105


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    #15
    bonzodog2
    Registered Users Posts: 6,210 ✭✭✭bonzodog2


    Definitely 105


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    #16
    duffman85
    Registered Users Posts: 339 ✭✭duffman85


    The Raptor wrote: »
    I'm not missing it.

    The sheep minus duck equals 99kg. But if you were to add the duck back on it would be 100 kg. So 100kg for the sheep plus duck. Minus the duck equals 99kg for the sheep.

    Sheep - duck =99
    So sheep=99+duck=100


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    #17
    The Moldy Gowl
    Closed Accounts Posts: 19,889 ✭✭✭✭The Moldy Gowl


    The Raptor wrote: »
    I'm not missing it.

    The sheep minus duck equals 99kg. But if you were to add the duck back on it would be 100 kg. So 100kg for the sheep plus duck. Minus the duck equals 99kg for the sheep.


    If you were to add the duck back on, you would have no ducks.


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    #18
    Mr. CooL ICE
    Registered Users Posts: 17,518 ✭✭✭✭Mr. CooL ICE


    This man is the authority on everything sheep related.
    Sheep Lover wrote: »
    Er no.

    Sheep = 100kg
    Sheep - duck = 99 kg
    Sheep + duck = 101 kg


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    #19
    Quandary
    Registered Users Posts: 5,295 ✭✭✭Quandary


    retweet wrote: »
    105 is right. On the third line, you're probably adding the goat as 99kg, it's 100kg.

    That ain't no goat brah.


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    #20
    kfallon
    Registered Users Posts: 25,775 ✭✭✭✭kfallon


    Let me guess OP, you didn't do too well at Algebra in school?


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    #21
    The Raptor
    Closed Accounts Posts: 1,433 ✭✭✭The Raptor


    kfallon wrote: »
    Let me guess OP, you didn't do too well at Algebra in school?

    Did you?


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    #22
    The Backwards Man
    Closed Accounts Posts: 18,299 ✭✭✭✭The Backwards Man


    The answer is a power washer.


    For all the shìte they're going to leave on the street.


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    #23
    The Moldy Gowl
    Closed Accounts Posts: 19,889 ✭✭✭✭The Moldy Gowl


    The Raptor wrote: »
    Did you?

    Probably better than you.
    Unless you are 12


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    #24
    Stokolan
    Registered Users Posts: 1,808 ✭✭✭Stokolan


    Its definitely 105

    105. Is mixed meat special in schezwan sauce in my local Chinese take away.


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    #25
    The Raptor
    Closed Accounts Posts: 1,433 ✭✭✭The Raptor


    Quandary wrote: »
    You are thinking about it incorrectly.

    Sheep - Duck = 99kg
    100kg - 1kg. = 99kg

    Therefore Sheep is 100kg

    Yes, you're right.


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    #26
    ytpe2r5bxkn0c1
    Closed Accounts Posts: 32,688 ✭✭✭✭ytpe2r5bxkn0c1


    The Raptor wrote: »
    Yes, you're right.

    D'ooh, do you think?

    Of course he's right.


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    #27
    maudgonner
    Registered Users Posts: 5,455 ✭✭✭maudgonner


    Anybody else got "Old MacDonald had a farm" stuck in their heads now?

    No? Just me? Grand so...


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    #28
    coffee_cake
    Moderators, Category Moderators, Politics Moderators, Recreation & Hobbies Moderators, Society & Culture Moderators Posts: 81,309 CMod ✭✭✭✭coffee_cake


    fatknacker wrote: »
    Only geniuses can solve

    bbc thinks you can't


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    #29
    Allinall
    Registered Users Posts: 6,574 ✭✭✭Allinall


    You can't subtract a duck from a sheep, unless there was a duck there in the first place.

    It's a baaad equation, with quacked logic.


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    #30
    gramar
    Closed Accounts Posts: 12,045 ✭✭✭✭gramar


    The Raptor wrote: »
    I'm not missing it.

    The sheep minus duck equals 99kg. But if you were to add the duck back on it would be 100 kg. So 100kg for the sheep plus duck. Minus the duck equals 99kg for the sheep.

    You'd have a shuck.


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    #31
    The Backwards Man
    Closed Accounts Posts: 18,299 ✭✭✭✭The Backwards Man


    I'll remember this thread the next time there's talk of a teacher's strike.


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