SOLUTION: How many two-digit numbers can be formed from the integers 5, 6, 7, 8 and 9 without any digit repeated, if they are less than 70?
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Question 924844: How many two-digit numbers can be formed from the integers 5, 6, 7, 8 and 9 without any digit repeated, if they are less than 70? Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! 5, 6, 7, 8 and 9
How many two-digit numbers < 70 can be formed without any digit repeated
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2 choices for the first Number (5 0r 6)AND then 4 choices for the second Number 2*4) = 8 two-digit numbers < 70 can be formed.
