Help me!! Ugent

Set A - Direct Proportion
1. 6:12=3:N
2.N:4=24:6
3.20:24=x:6

Set B - Inverse Proportion
1. boys - 4 - 8
tank - 2 - n

2. hours - 30 - n
meters - 9 - 20 km

3. 20 minutes 16 minutes
--------------------- = ----------------------
20 kph N

Activity C - Partitive Proportion
1. 1n:3n:5n = Php 72,000.00
2. 2n:1n:2n = 145 cm
3. 1040 = 1 : 3 : 4​