Question

if U = {5,10,15,20,25,30} then which of the following is the subset of U?
A. {5,15,25}
B.{10,35,5,75}
C. {20,6,10,12
D. {10,20,30,40}

Answer 1

A is correct
{5,15,25} is the subset of U as U includes all these numbers in it