I do not know Virginia1 i am sorry i could not help good luck bye
The answer is 3
Think of two odd numbers (1,3,5,7,or 9) that add up to twelve.
The number as one has to be a multiple of 15 (15 should be able to be multiplied by any number to get to that odd number).
Answer:
i think its 23. ............
You didn't put any options but any ratio that 4.2:1 doesn't go into is not equivalent.
Hope this helps :)