16 is 80% of what number?
O A. 20
O B. 12.8
O C. 500
O D. 128

Answer:
A. 20
Step-by-step explanation:
1. To solve this problem, instead of doing 80/100 times 16, we can do 100/80 times 16 (inverse of percentage, basically).
Therefore, the answer is A. 20.