Sophie exchanged 300 American dollars for 378 New Zealand dollars. How many New Zealand dollars will she get for 50 American dollars

378/300 is 1.26 which is how many American dollars it takes for 1 New Zealand dollar, so if you have 50 american dollars, how many New Zealand dollars will you have?

we know how much 1 american dollar is (1.26) and if we times that by 50, we get 63, so 50 american dollars is equal to 63 New Zealand dollars

Thays a good answer but to simplify it you could ...

well, 300 : 6 = 50

so if 378 : 6 = 63

and thats all : - )