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Maths Puzzle
Numerical Ability
What is the sum of the first 500 odd digits? 1 + 3 + 5 + ... + 501 = ?
And what is the sum of the first 500 even digits? 2 + 4 + 6 + ... + 502 = ?
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book Other Question
The integers from 1 to 1000 are printed on a list how many time does the digit 3 appear?
What is the square root of x^3?