Using the percentage concept, it is found that the Dolphins club had a higher percentage of girl members.
What is a percentage?
The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:
[tex]P = \frac{a}{b} \times 100\%[/tex]
For the Dolphins club, 42 out of 60 members are girls, hence the percentage is:
P = 42/60 x 100% = 0.7 x 100% = 70%.
70% is a greater percentage than 68%, hence the Dolphins club had a higher percentage of girl members.
More can be learned about the percentage concept at https://brainly.com/question/10491646
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