I Am Between 50 And 100. I Am Divisible By 3 And 4. My Tens Digit Is Double My Ones Digit

I am between 50 and 100. I am divisible by 3 and 4. My tens digit is double my ones digit

 

Answer:

84

Step-by-step explanation:

because its divisible by 3 and 4

84 divided by 3 =28

84 divided by 4 = 21