In a group of hats consisting of only blue hats, green hats, and purple hats, the ratio of blue hats to green hats to purple hats is 7:4:12. If there are a total of 46 hats in this group, how many of these hats are not blue?  Choose the correct choice from the following
A) 28 B) 42 C) 48 D) 32 E) 76
Since the hats Blue, Green and Purple are in ratio of 7:4:12...The total no. of balls will be   7x+4x+12x=46 or 23x=46...here 7x,4x and 12x represent hats of each type   23x=46 so x=2...Blue hats =7*2=14...Not blue will be   46-14= 
<gadget id="calculator">  46-14</gadget>
<output>32</output>
32.   Ans 32
<result>D</result>
In a group of hats consisting of only blue hats, green hats, and purple hats, the ratio of blue hats to green hats to purple hats is 7:4:12. If there are a total of 46 hats in this group, how many of these hats are not blue?