Solve for N to complete the proportion of the following items. Match Column A to Column B.
COLUMN A
21. 3:6 = N: 24
22. N: 25 = 4:10
23. 7:1 = N: 3
24. 2:16 = 7: N
25. 5:12=35:N

Colomn B.
A. 56
B. 84
C. 21
D. 10
E. 12​