School trip

School trip cost 247.2 Eur for one class (24 students).

How much would cost a trip for two classes? (both classes together have 53 students)

Result

x =  545.9 Eur

Solution:

c=247.2/24=10310=10.3 x=53⋅ c=53⋅ 10.3=545910=545.9 Eurc=247.2 / 24=\dfrac{ 103 }{ 10 }=10.3 \ \\ x=53 \cdot \ c=53 \cdot \ 10.3=\dfrac{ 5459 }{ 10 }=545.9 \ \text{Eur}

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