Answer:
60%
Explanation:
Number of people ages 26 - 35 prefer Ad A = 12
Number of people ages 26 - 35 prefer Ad B = 8
Total people ages 26 - 35 = 12 + 8
= 20
Percent of people ages 26 - 35 prefer Ad A = Number of people ages 26 - 35 prefer Ad A / Total people ages 26 - 35 × 100
= 12/20 × 100
= 0.6 × 100
= 60%
Percent of people ages 26 - 35 prefer Ad A = 60%