SOLUTION: when a truck travels 60kmph, it uses 30% more fuel to travel any distance than it takes when it travels at 50kmph. the truck can travel 20 km on a litre of fuel if it is travelling

Question 621985: when a truck travels 60kmph, it uses 30% more fuel to travel any distance than it takes when it travels at 50kmph. the truck can travel 20 km on a litre of fuel if it is travelling at 50kmph. the truck has only 10 litre of fuel in the tank and is 160km from its destination. If it takes 20 minutes for the truck to fill the fuel, how long will the truck take to reach its destination if it is driven at 60kmph?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
when a truck travels 60kmph, it uses 30% more fuel to travel any distance than it takes when it travels at 50kmph.
the truck can travel 20 km on a litre of fuel if it is traveling at 50kmph. the truck has only 10 litre of fuel in the tank and is 160km from its destination.
If it takes 20 minutes for the truck to fill the fuel, how long will the truck take to reach its destination if it is driven at 60kmph?
:
Find how long it will take to go 160 km at 60 km/hr
= 2 hrs, add 20 min for fueling (1/3 hr)
3 hrs to reach it's destination
:
I fail to see what all that stuff about fuel has to do with it.
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