SOLUTION: How many positive integers x are there such that 3x has three digits and 4x has four digits?
Algebra.Com
Question 238959: How many positive integers x are there such that 3x has three digits and 4x has four digits?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
99 > 3x > 1000
33 > x > 333 1/3 ___ 34 to 333
999 > 4x > 10000
249 3/4 > x > 2500 ___ 250 to 2500
250 to 333 ___ 84 integers
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