Total number of goldfish is 14. The total number of guppies = 26. The total number fish in the fish tank is 40. The probability that the first selected fish is a goldfish is 14 / 40 = 7 / 20. The probability that the second selected fish is a goldfish is 13 / 39 = 1 / 3. The probability that two randomly selected fish from a fish tank are both goldfish is 7/20 x 1/3 = 7/60