You have to find out what is the square root of 1.5 is which is <span>1.22474487139 by calculator to make sure of this, do answer squared and you will get 1.5</span>
If you divide 48 by 4 will give you 12 and it's correct because when you multiply 4 times 12 give you 48. You can also use the solution of the picture.
