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How many 5 number random combinations of numbers are there between 1-40?
Wiki User
∙ 11y ago
Assuming without repeats:
40C5 = 40!/(40-5)!5!
= 40x39x38x37x36x35x34x...x2x1/(35x34x...x2x1)x(5x4x3x2x1)
= (5x4x2)x(3x13)x38x37x36/5x4x3x2x1
= 13x38x37x36
= 658008
Wiki User
∙ 11y ago
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