Answer:
The answer is C. 16
Step-by-step explanation:
Notepads of the same color = 4
As we have two sizes then total for the same color =
Notepads of the different colors as we have to choose 3 different colors out of 4 = 4C3 = 4
For two sizes the total for the different color =
We can group these like - Same size same color package:
There are eight combinations
Size 1:
BBB
GGG
YYY
PPP
Size 2:
BBB
GGG
YYY
PPP
Next groups form like : Same size different color
Size 1:
BGY
BYP
GYP
BGP
Size 2:
BGY
BYP
GYP
BGP
So, we get total =