Percent chaining

Calculate 20% from 70% from 80 km

Result

x =  11.2 km

Solution:

x=0.2⋅ 0.7⋅ 80=565=11.2 kmx=0.2 \cdot \ 0.7 \cdot \ 80=\dfrac{ 56 }{ 5 }=11.2 \ \text{km}

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