Question

Gary is looking over his receipts from his trip to Europe. When he was in Germany, he exchanged US dollars for euros at a rate of 1:0.7716, and when he was in Poland, he exchanged euros for Polish zloty at a rate of 1:4.0518. To four decimal places, what was the exchange rate of US dollars to Polish zloty?

Answer 1

The US to euros is 1: 0.7716, 
The euros to Polish is 1:4.0518

0.77      4.05         0.77     1          0.77
-----  /  --------- =   ------- x ----     = ------         
 1             1              1       4.05     4.05

 (so for every 0.77 dollars it is 4.05 zolty.)

hope this helps

sorry if it is confusing

Answer 2

For anyone who still needs it, the answer is 1:3.1264.