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5. At the Redbridge School, of pupils have a pet dog, & have a cat and have a
The rest have no pets.
A)What fraction of the children has no pet? Write this in its simplest form.
B)There are 250 pupils at the School. How many children have no pets?
C)At the Bluebell School, 23% have no pets. What percentage increase of pupils at
the Bluebell School have no pets compared to the Redbridge School?

Sagot :

A percentage is a way to describe a part of a whole. The number of people who don't have pets is 50 people.

What are Percentages?

A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

Given at the Red bridge School, 1/3 of pupils have a pet dog 2/5 have cat and 1/15 have a hamster.

A.) Number of people who don't have pets = 1 - 1/3 - 2/5 - 1/15

                                                                        = (15-5-6-1)/15

                                                                        = 3/15

                                                                        = 1/5

B.) Given there are 25 people at the school. Therefore, the number of people who don't have a pet is,

Number of people who don't have pets = (1/5) × 250 = 50

C.) The percentage increase of pupils at the Bluebell School that has no pets compared to the Red bridge School is,

Percentage increase = (23%-20%)/20% × 100% = 15%

Hence, the number of people who don't have pets is 50 people.

Learn more about Percentages:

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