In 2009, 1 U.S. dollar purchased 1400 Korean won and in 2013 it purchased 900 Korean won. How much did 1000 Korean won cost in U.S. dollars in 2009 and 2013?
Question 23 options:
1)
2009: .84 dollars, 2013: 1.09 dollars
2)
2009: .72 dollars, 2013: 1 dollar
3)
2009: .83 dollars, 2013: 1.12 dollars
4)
2009: .71 dollars, 2013: 1.11 dollars