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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
x^2 + 3y if x= -1/2 and y= -5/6
Two planes leave simultaneously from the same airport, one flying due east and the other flying due south. The eastbound plane is flying 100 mph faster then the southbound plane.