Question: if two positive numbers are in the ratio 1 / 8 : 1 / 7 , then by what percent is the second number more than the first ?
A) 14.3 % .
B) 70 % .
C) 60 % .
D) 68 % .
E) 80 % .
Correct answer: a
Grade: 6 | Topic: Ratios and proportions | Difficulty: Easy | Standard: 6.RP.A.3c