Question

HELP!
Sean just purchased a new fish tank. he bought 7 guppies, 12 cichlids, 4 tetras, 9 corydoras and 2 synodontis catfishes.

1) what is the ratio of guppies to cichlids?
2) what is the ratio of tetras to catfishes?
3) what is the ratio of corydoras catfishes to the total number of fish?

Answer 1

1) 7:12
2) 4:2 = 2:1
3) 2:34 = 1:17

Answer 2

for number 2 & 3. my choices are as follows:
2) 4:9, 4:2, 4:11 or 9:2
3) 11:34, 1:17, 9:11 or 9:34
therefore i am confused about your ans