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Another speed problem

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by GmatTakerNo.1 » Sun May 02, 2010 12:20 pm
When Johns travels at 120 km/h he uses 30% more fuel than when he travels only at 80 km/h. If he can travel 19.5 km on one liter at 80 km/h, how far can he travel with 10 liters of fuel at 120 km/h?

The answer is 150 km.
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by iamseer » Sun May 02, 2010 12:33 pm
At speed 80km/h: In 1 liter, 19.5 km
At speed 120 km/h: 19.5 km will need 1.3 liters

At speed 120 km/h: 10 liters will suffice 10*19.5/1.3 = 150 km

HTH
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by GmatTakerNo.1 » Sun May 02, 2010 12:37 pm
Thanks again ;)
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