Asked by Kev

Q:
Joe's car can go 9 1/7km with 1 liter of gas. How far can it go with 1 1/8 liters of gas?

9 1/7 to 9.143
1 1/8 to 1.125

1 liter / 9.143 = 0.109 liters per km

1.125 liters / 0.109 liters per km = 10.32km

A:
Joe's car can go 10.32km on 1 1/8 liters of gas.

Is this correct?
Thank you.
Answered by Reiny
1 L take you 64/7 km
9/8 L take you (64/7) * (9/8) or 72/7 km
or
10 2/7 km = appr 10.29 km

again, I repeat my concern about decimals vs fractions.
First of all you rounded off intermediate answers, so the error just gets compounded
Answered by Kev
Thank you, Reiny.
I see your point about decimals vs. fractions.
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