Question

how many positive integer x are there such that 3x has 3 digits and 4x has four digits?​

Answer 1

Answer:

Step-by-step explanation:

Here 99 > 3x > 1000  

or  33 > x > 333 1/3 ___ 34 to 333  

999 > 4x > 10000  

249 3/4 > x > 2500 ___ 250 to 2500  

250 to 333 ___ 84 integers