If 'y' is a positive integer exactly divisible by 4 or 5 but not divisible by 8.What could possibly be the value of 'y' ? Choose the correct choice from the following choices:	A) 40	B) 80	C) 20	D) 24	E) 36
40 and 80 are both divisible by 4 and 5 but also by 8. so they are not the right answer.   24 and 36 are both clearly not divisible by 5(not correct)   20 is both divisible by 4 and 5 but not by 8.   answer : (20)
<result>C</result>
If 'y' is a positive integer exactly divisible by 4 or 5 but not divisible by 8.What could possibly be the value of 'y' ?