i am a 3 digit number whole number.If u double me,I remain a 3 digit number.If you add 2 to me after I am doubled, I become a 4 digit number.What number am I?
Mathematics · Middle School · Mon Jan 18 2021
llm
Answered on
The number doubled is a 3-digit number so
2x<1000 or x<500
2 more than the number doubled is a 4-digit number so
2x+2>999 or x>498
The solution to
498<x<500 is
x=499