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    240 students did a test the pie chart shows their grades e.g
    D - 180*
    E- 90 *
    C - 30*
    F- 60 *

    question:
    how many students get grade C?

    Help please.
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    (Original post by Noorals)
    240 students did a test the pie chart shows their grades e.g
    D - 180*
    E- 90 *
    C - 30*
    F- 60 *

    question:
    how many students get grade C?

    Help please.
    there are 360 degrees in a circle, grade c makes up 30 degrees of this. So as a fraction that is 30/360 which equals 0.08333 or 8.33%. 8.33% of 240 students is 20 students at grade c
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    (Original post by claireestelle)
    there are 360 degrees in a circle, grade c makes up 30 degrees of this. So as a fraction that is 30/360 which equals 0.08333 or 8.33%. 8.33% of 240 students is 20 students at grade c
    Thanks
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    (Original post by claireestelle)
    ...
    You could have just done \frac{30}{360} \times 240 = 20 instead of decimals and percentages. Just wanted to let you know that full solutions are against forum guidelines, cat's out of the bag now but just so you know for next time.
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    (Original post by Zacken)
    You could have just done \frac{30}{360} \times 240 = 20 instead of decimals and percentages. Just wanted to let you know that full solutions are against forum guidelines, cat's out of the bag now but just so you know for next time.
    Sorry, I don't post in study help often so I forgot You're right I did go about that awfully long winded way.
 
 
 
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