A set consists of 18 numbers, all are even or multiple of 5. If 6 numbers are even and 12 numbers are multiple of 5, how many numbers is multiple of 10?  Choose the correct choice from the following options: A) 0 B) 1 C) 2 D) 3 E) 5
{Total} = {Even} + {Multiple of 5} - {Both} + {Nether}.   Since{Neither}=0(allare even or multiple of 5) then:   18 = 6 + 12 - {Both}   + 0= 
<gadget id="calculator">  + 0</gadget>
<output>0</output>
0(so 1 number is both even AND multiple of 5, so it must be a multiple of 10).   0nswer: 0.
<result>A</result>
A set consists of 18 numbers, all are even or multiple of 5. If 6 numbers are even and 12 numbers are multiple of 5, how many numbers is multiple of 10?