How many numbers between 1 ad 100 are equal to 5 times an odd number?
Answer Choices
A. 9
B. 10
C. 11
D. 19
We have: 1*5=5
3*5=15
5*5=25
7*5=35
9*5=45
11*5=55
13*5=65
15*5=75
17*5=85
19*5=95
And, that is 10, (B).
Thank You Very Much! I Think I Understand Now!