What are the extremes of the following proportion?
3⁄15 = 12⁄60
A12 and 60
B3 and 15
C15 and 12
D3 and 60
What are the extremes of the following proportion?
3⁄15 = 12⁄60
A12 and 60
B3 and 15
C15 and 12
D3 and 60