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Days of month using 2 dice

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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 31 one dice should show 3 and another should show 1.

represent days of month using two dice

represent days of month using two dice

See Answer
Answer is:
Dice 1: 0 1 2 3 5 7
Dice 2: 0 1 2 4 6 8

How?
Basically you have to show 11, 22 so 1 and 2 should be present in both dices, similarly to show 01, 09 0 should be present in both dices, now the trick is for showing 9 you can use dice with 6 printed on one of the face.

Triangle angle puzzle

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triangle puzzle

triangle puzzle

What is the missing number in above picture?

See Answer

Answer with Explanation

Answer is 30.
How?
ignore 225, it is to confuse, here we will use the triangles property that the sum of all the angles inside a triangle should be 180 degree.

so 75 + 75 + ? = 180
=> ? = 180 – 150
=> ? = 30

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