Question

85% of the people at a family party were adults.

There were also nine children at the party.

Given that there were only adults and children at the party,

complete these sentences.

(a)

% of the people at the party were children.

(b) There were

people at the party.

(c) There were

adults at the party.

Answer 1

The percentage of children that were at the party is 15%.

The number of people in the party is 60 people.

The number of adult in the party is 51 adults.

What is Percentage:

percentage is a ratio that can be expressed as a fraction of 100.

85% of the people at the family party are adult.

Therefore,

let

x = total number of people at the party

The party has only adult and children.

number of children = 9

a.

percentage of children in the party = 100% - 85% = 15%

b.

Let's find the total number in the party using the number of children

15 / 100 × x = 9

15x / 100 = 9

cross multiply

900 = 15x

x = 900 / 15

x = 60

c.

Let's find the number of adult in the party

number of adult in the party = 60 - 9 = 51 adults

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