Question 1
In a alternate dice, opposite faces sum to 7.
3 dice stacked vertically. What is the sum of numbers on all visible faces?
Total sum on 3 dice = 3 × 21 = 63
Hidden faces = 6
Each hidden face has its opposite hidden (sum = 7)
Hidden sum = 6 × 3.5 = 21.0
Visible sum = 63 - 21.0 = 42
Hidden faces = 6
Each hidden face has its opposite hidden (sum = 7)
Hidden sum = 6 × 3.5 = 21.0
Visible sum = 63 - 21.0 = 42