How many unique positive odd integers less than 100 are equal to the product of a positive multiple of 5 and an odd number?  Choose the correct choice from the following answers:  A) 4  B) 10  C) 11  D) 12  E) 15
The Question basically asks how many positive odd integers less than 100 are odd multiples of 5   So we have 5,15,25,35,45,55,65,75,85,95   =10   Ans 10
<result>B</result>
How many unique positive odd integers less than 100 are equal to the product of a positive multiple of 5 and an odd number?