If m and n are multiple of 5 which one of the following must not necessarily be true.
a. m*n is a divisible by 10.
b. the product m*n is a multiple of 25.
c. m*n is a multile of 5

• option a
  m*n is not divisible by 1o
• 12 years agoHelpfull: Yes(3) No(1)