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How can you represent days of month using two 6 sided dice? You can write one number on each face of the dice from 0 to 9 and you have to represent days from 1 to 31, for example for 1, one dice should show 0 and another should show 1, similarly for 29 one dice should show 2 and another should show 9.
This is how it can be indicated!
What was the challenge?
Dice 1: 0 1 2 3 5 7
Dice 2: 0 1 2 4 6 8
The number 0 has to be present on both the dice. The '0' on first die needed for dates from 1 to 9 to show them as 01,02,03......and the '0' on second die will be used for the dates 10,20,30.
The number 1 and 2 are repeated on the dates 11 and 22 so those 2 numbers has to be there on both dice.
Now, we are left with total 6 positions but 7 numbers - 3 to 9.
However, 6 and 9 can be represented by single die if it is written on one of the side of the die. In normal position it will represent 6 & in inverted position it will show 9 or say vice versa.
For example, the dates 6 and 9 can be indicated as -