In 36 days a girl spent 18 dollars. On average, what did she spend daily?

Solution:

Given that a girl spends 18 dollars in 36 days.

We know that average data can be calculated as the ratio of the sum to days.

Here the sum is 18 dollars and the number of days is 36.

average= sum in dollars/ number of days

average= 18/36 = 1/2 = 0.5 dollar per day

In 36 days a girl spent 18 dollars. On average, what did she spend daily?

Summary:

In 36 days a girl spent 18 dollars. On average, she spends 0.5 dollar daily.