A set consists of 15 numbers, all are even or multiple of 5. If 8 numbers are even and 10 numbers are multiple of 5, how many numbers is multiple of 10? Select the correct option:	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:   15 = 8 + 10 - {Both} + 0;   {Both}=3(so 1 number is both even AND multiple of 5, so it must be a multiple of 10).   Answer: 3.
<result>D</result>
A set consists of 15 numbers, all are even or multiple of 5. If 8 numbers are even and 10 numbers are multiple of 5, how many numbers is multiple of 10?