Question 549962: How many three digit numbers greater than 700 can be formed by using the digits 4,5,6,7,8,9?
Answer by mathstutor458(57)   (Show Source):
You can put this solution on YOUR website! given numbers are 4,5,6,7,8,9
the required number is greater than 700 and that must be a three digit number.
first number must be 7,8,9
the remaining numbers can be any remaining numbers.
Therefore,numbers greater than 700 =3*6*6=108(if numbers are repeting,if numbers are not repeting then answer=3*5*4=60)
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