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13 August, 15:20

In a class of 50 students the number of students who offer accounting is twice as the number who offer economic. 10 students offer neither of the two subjects and 5 students offer both subjects. How many students offer accounting, economics and only one subject?

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  1. 13 August, 18:57
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    accounting=30, economics=15, only one=35

    Step-by-step explanation:

    a=2e

    5 both

    10 neither

    40=a+e-5

    45=a+e

    45=2e+e

    e=15

    a=2e

    a=30
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