ok
There are 64 cups in 4 gallons
64 cups ----------------------- 4 gallons
x ----------------------- 3 gallons
x = (3 x 64) / 4
x = 192/3
x = 48
There are 48 cups in 3 gallons
2.- 150 recyclable items ----------------------- 3 min
x ---------------------- 4 min
x = (4 x 150) / 3
x = 600/3
x = 200
There will be 200 recycable items in 4 min
3.- 39 diamonds ---------------- 3 chandeliers
x ---------------- 4 chandeliers
x = (4 x 39)/3
x = 52 diamonds
39 diamonds ---------------- 3 chandeliers
x ---------------10 chandeliers
x = (39 x 10) / 3
x = 390/3
x = 130 diamonds
4.-
1 egg ------------------------- 25 hours
3 eggs ---------------------- x
x = (3 x 25) / 1
x = 75 hours
1 egg ------------------------- 25 hours
x -------------------------- 100 hours
x = (100 x 1) / 25
x = 4 eggs
1 egg ------------------------- 25 hours
12 eggs ---------------------- x
x = (12 x 25) / 1
x = 300 hours
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