Abowl of flower seeds contain 5 petunia seeds and 15 begonia seeds. riley caculated the probility that a randomly selected seed is petunia seed as 1\3. describe and correct rileys answer

Assuming that this is the complete question : a bowl of flower seeds contains 5 petunia seeds and 15 begonia seeds. Riley calculated the probability that a randomly selected seed is petunia seed as 1/3. Describe and correct Riley's Error .

Answer :

Riley is wrong because the probability of a randomly selected seed is petunia is 1/4.

Total petunia seeds : 5
total all seeds        : 20

Probability = 5/20 = 1/4

Please mark me as brainliest since the other person failed to explain why Riley's incorrect :)
Hope this helped