What does this question from Stalla mean? question

johnnyBuz

This is the exact question:
If A1.00 = B0.72, then what is A if B1.00?
a. A0.072
b. A1.280
c. A1.390
This is in the context of currencies.
?

kd26gioi

Looking for the A/B exchange rate. It is the cost of B in terms of A. No different than Y/$;
cost of 1$ in terms of
So, lets say A = $, B=yen, then their question says:
If A1.00 = B0.72, then what is A if B1.00? i.e.,
If $1.00 = yen 0.72, then what is $ if yen 1.00?
Sorry, it still does not make sense. Can you read this last line?

Flok

This is yet another notation. What does “….what is A if B1.00” mean?

Spongebob

It is a quote question. You simply take the reciprocal 1/a to get the indirect quote of A:B.
C. 1/.72