Question

When one U.S. Dollar is worth one point five two Australian Dollars, which of the following could be used as a conversion factor?

nineteen one hundred twenty-fifths

one and twelve twenty-fifths

one and thirteen twenty-fifths

five and one-fiftieth

Answer 1

For this problem...the ratio of Australian currency to US currency is 1.52:1

When evaluating the different choices above, try to put the ratio into something with denominators.

So it could be \[(1.52 * 25)\div(1*25)\]

When simplifying the multiplication, you get 38 / 25. Then you can reduce it :) So what is the conversion factor? :)

Answer 2

It would be 1 and 13/25