The different views of a dice are shown here. If six dots appear on the back face, and the sum of numbers on opposite faces is same, how many dots will be there on the bottom face of the dice?
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Solution
Number of dots on the front face = 1
Number of dots on the back face = 6
Sum of dots on the opposite faces = 1 + 6
= 7
Number of dots on the top face = 3
As the sum of dots on the opposite faces is 7, so the number of dots on the bottom face = 7 - 3
= 4.