Posted by **Mike** on Friday, March 7, 2008 at 12:55pm.

* Which is performing more efficiently? A car getting 12 km per liter of gas or one getting 25 miles per hour?

* _______ hectares (ha) = 65,000 square meters (sq m) (EXACT answer)

* 1200 grams = ________ pounds

* A cubic centimeter is :

A cube with an area of 1 sq cm

A cube with a length of 1 cm

A cube with an area of 1 cm

A cube with a volume of 1 cu cm.

- Math -
**Reiny**, Friday, March 7, 2008 at 2:50pm
your first question makes no sense. You are comparing fuel consumption with speed.

I will assume you meant 25 miles/gallon?

and you are using US gallons.

1 mile = 1.609 km and 1 US gallon = 3.79 litres.

so 25mil/gall = 25*1.609km/3.79litres

= 10.6km/litre

BTW, fuel consumption in the metric system is not expressed as so many km per litre but rather

x litres/100km

So in our display on a car it might say

fuel consumption: 7.7

so the lower the number the better.

Your second question is a matter of looking up the units, try it

for the third what is 1*1*1 ?

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