Answer :
Answer:
The ratio of a to c is 17/21.
Step-by-step explanation:
We can represent b as 1.05a as b is 5% more than a.
We can represent b as 0.85c as b is 15% less than c or 85% of c.
It becomes:
1.05a = 0.85c
1.05a/c = 0.85
a/c = 0.85/1.05
a/c = 17/21
