Question 1
The number 64 has the property that it is divisible by its units (ones) digit. How many whole numbers between 10 and 50 have the same property?
A. 15
B. 16
C. 17
D. 18
E. None of the above
**Editorial note for this self-study exercise:** Enter the number of qualifying integers, not an option letter. A zero units digit cannot be used as a divisor.
A. 15
B. 16
C. 17
D. 18
E. None of the above
**Editorial note for this self-study exercise:** Enter the number of qualifying integers, not an option letter. A zero units digit cannot be used as a divisor.