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    There are 644 boys and 520 girls in a school
    the probability that a boy chosen at random studies french is 3/7
    the probability that a girl chosen at random studies french 5/8

    A) work out the number of students in the school who study french?

    B) what is the probability as a fractio that a student chosen at random from the whole school does not study french ?


    Can anyone help i have attempted but cant manage to find the answer
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    A) 601.

    (644/7)×3=276
    (520/8)×5=325
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    Tha
    (Original post by Bio 7)
    A) 601.

    (644/7)×3=276
    (520/8)×5=325
    Thanks
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    (Original post by lara36)
    There are 644 boys and 520 girls in a school
    the probability that a boy chosen at random studies french is 3/7
    the probability that a girl chosen at random studies french 5/8

    A) work out the number of students in the school who study french?

    B) what is the probability as a fractio that a student chosen at random from the whole school does not study french ?


    Can anyone help i have attempted but cant manage to find the answer
    Name:  image-f5ca523d-eff6-429e-8b10-c914d3fef78a239954377-compressed.jpg.jpeg
Views: 37
Size:  37.5 KB
    this should help u through the whole problem if u don't understand how to do any part let me know and also let me know how helpful this was
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    (Original post by lara36)
    There are 644 boys and 520 girls in a school
    the probability that a boy chosen at random studies french is 3/7
    the probability that a girl chosen at random studies french 5/8

    A) work out the number of students in the school who study french?

    B) what is the probability as a fractio that a student chosen at random from the whole school does not study french ?


    Can anyone help i have attempted but cant manage to find the answer
    always draw a tree diagram Nd you will see all the answers automatically that's what I do with all the probability questions and they always work
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    (Original post by brainmaster)
    always draw a tree diagram Nd you will see all the answers automatically that's what I do with all the probability questions and they always work
    Ive got the answer for that one could you help on another ?
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    Name:  5666C568-0223-4740-AAC5-86F59E93AB86.jpg.jpeg
Views: 42
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    Please make your thread titles more specific
    E.g. “Maths”
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    (Original post by Y11_Maths)
    Please make your thread titles more specific
    E.g. “Maths”
    Sorry ill make it more clear im just new here
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    (Original post by lara36)
    Sorry ill make it more clear im just new here
    No worries, welcome to TSR
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    (Original post by Y11_Maths)
    No worries, welcome to TSR
    Thanks
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    (Original post by lara36)
    Name:  5666C568-0223-4740-AAC5-86F59E93AB86.jpg.jpeg
Views: 42
Size:  49.5 KB
    Name:  image-453911df-e7af-4872-808f-92f39053e1c52117591301-compressed.jpg.jpeg
Views: 34
Size:  39.7 KB

    here you go. Let me know you dint understand something
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    (Original post by brainmaster)
    Name:  image-453911df-e7af-4872-808f-92f39053e1c52117591301-compressed.jpg.jpeg
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    here you go. Let me know you dint understand something
    Thank ive got it could you help with this also Name:  B56401CB-2CC4-4C62-9B86-108AE3DB9E66.jpg.jpeg
Views: 33
Size:  36.0 KB
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    (Original post by lara36)
    Thank ive got it could you help with this also Name:  B56401CB-2CC4-4C62-9B86-108AE3DB9E66.jpg.jpeg
Views: 33
Size:  36.0 KB
    same concept again;
    Name:  image-a87492ea-56eb-4120-9dbf-dc638c5a3cf5-1884267478-compressed.jpg.jpeg
Views: 33
Size:  38.3 KB

    I hope u r understanding all this and not just using the answers
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    (Original post by brainmaster)
    same concept again;
    Name:  image-a87492ea-56eb-4120-9dbf-dc638c5a3cf5-1884267478-compressed.jpg.jpeg
Views: 33
Size:  38.3 KB

    I hope u r understanding all this and not just using the answers
    Yes i understand what your saying in the answer but anyway thank you for all your help
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    (Original post by lara36)
    Yes i understand what your saying in the answer but anyway thank you for all your help
    your welcome and you can ask me more if you like I'll be happy to help but i want u to understand what I'm doing
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