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Question

# In an aquarium, there are 50 fish as per the following table. Color of Fish Number of Fish Percentage Red 15 - - - Blue 5 10% Yellow 30 - - - Total 50 100% Out of the total number of creatures, % are red fish, and % are yellow fish in the aquarium.

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Solution

## There are total 50 fish in the aquarium. Out of these 50 fish, ∙ Number of red fish = 15, i.e., 1550=310 fraction of the total fish in the aquarium are red in color. ∙ Number of blue fish= 5, i.e., 550=110 fraction of the total fish in the aquarium are blue in color. ∙ Number of yellow fish = 30, i.e., 3050=35 fraction of the total fish in the aquarium are yellow in color. The fractions of different fish are summarized in the table below: Color of Fish Number of Fish Fraction Red 15 310 Blue 5 110 Yellow 30 35 Total 501 11 We know that for calculating percentage, we multiply the fraction part by 100 as tabulated below. Color of Fish Number of Fish Percentage Red 15 310×100=30% Blue 5 110×100=10% Yellow 30 35×100=60% Total 50 11×100=100% ∴ Out of total 50 fish, ∙ 30% are red fish, ∙ 10% are blue fish, ∙ 60% are yellow fish. And the corresponding pie chart is as follows:

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