Question

An oil refinery produces gasoline from crude oil. For every 10,000 barrels of crude oil supplied, the refinery can produce 6,500 barrels of gasoline. How many barrels of gasoline can be produced from 3,500 barrels of  crude oil?

Answer 1

10000 barrels of crude oil produces 6500 barrels gasoline
1 barrel of crude oil will produce 6500÷10000 barrels of gasoline
3500 barrels of crude oil will produce 6500 × 3500 ÷10000 barrels
= 3500 barrels of crude oil produce 2275 barrels of gasoline

Answer 2

2,275 barrels of refined oil will be produced from 3,500 barrels of crude oil.


with the information that from 10,000 barrels of crude oil, 6,500 barrels of refined oil are produced, it immediately pops out that from x amount of crude oil, 65% will be refined.

now we need to find what is 65% of 3,500


`(65)/(100)` =
`(x)/(3,500)`
to find x, we multiply 65 × 3,500 and that amounts to 227,500
that then is divided by 100 so 227,500 ÷ 100 = 2,275