It takes 59,0.25-liter bottles of orange juice contains to match the energy content in a liter of gasoline,where 87 octane gasoline contains 32 MJ per liter.How many food calories are there in one such 0.25-liter bottle of orange juice?

Question

Quizplus · Accepted Answer

To match the energy content of 1 liter of gasoline, we need 59 bottles of 0.25-liter orange juice, which is equal to 14.75 liters of orange juice. 
Energy content of 14.75 liters of orange juice = Energy content of 1 liter of gasoline
Energy content of 1 liter of gasoline = 32 MJ
Therefore, energy content of 14.75 liters of orange juice = 32 MJ
Energy content of 1 liter of orange juice = 32/14.75 MJ
Energy content of 0.25-liter bottle of orange juice = (32/14.75) x 0.25 MJ
1 MJ = 239 calories
Energy content of 0.25-liter bottle of orange juice = 130 food calories (approx)

Therefore, the best choice is A) 130 food calories.

It Takes 59,0