A survey of 40 people found that 15 had the same Internet service provider. The survey reported this information as the ratio 15:40 describe the results. Which is not an equivalent ratio? Reports about the survey used the following ratios to

21:46 3:8 24:64 6:16

Which of the ratios is not equivalent to the ratio 15:40
A. 3:8
B. 26:64
C. 21:46
D. 6:16