Did I solve this math problem correctly?

One motorcycle consumes 77.9 liters of gasoline per 300 km, another motorcycle consumes 54.3 liters of gasoline per 700 km.

By what percentage is the fuel consumption of one of the two motorcycles lower than that of the other?

Votes 29.9 I did both motorcycles on one kilometer and for that the petrol and then the difference in percent

(1 votes)
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Bujin
3 years ago

I would first calculate the consumption per 100 km for both to compare them.

With ratios one calculates the simplest KLEIN/GROSS

The ratio is thus 0.3 or on per 100

and

(percent is nothing but per 100 or /100. For this, the two zeros in the symbol %)

Motorad 2 consumes only 30% as much as Motorad 1 or 70% less. That’s both the same.

Volens
3 years ago

At 100 km the first motorcycle needs 25.96 litres,
the second 7.76 liter.
It is also possible to count percentages, but it is certainly not sensible.
The consumption of the first exceeds that of the second
by 234.5 %.

SebRmR
3 years ago

I made both motorcycles on a kilometre and the gasoline…

I guess you figured out what the motorcycles consume per kilometre.
300 km with 77.9 litres = 0.2596… l/km
700 km with 54.3 litres = 0.07757… l/km

If you have now calculated how much percentage is 0.07757 l/km of 0.2596 l/km, you get about 29.9 %. However, this does not mean that the difference is 29.9%.

.

But another question:
Does the data include consumption and distance?
0.2596 l/km for a motorcycle is quite high. (On the other hand, math tasks and reality)

Schachpapa
3 years ago
Reply to  SebRmR

Math tasks and reality

My answer in this direction was deleted. Today the moderators are once again particularly eager…

odine
3 years ago

If you’re 100% 29,9%, it’s true.

GJFNFENnn
3 years ago

The formula for the calculation is:

Percentage = share / total quantity

lallel739
3 years ago
Reply to  GJFNFENnn

very good answer.
the question was whether he/she has it right and not how to calculate it

GJFNFENnn
3 years ago
Reply to  lallel739

How to calculate