Thread: in town of 25000 inhabitants, 80% are over 18 years of ages

In a town of 25000 inhabitants, 80% are over 18 years of age

How many of the inhabitants are over the age of 18?

Of these 37.5% usually shop in the town's supermarket

How many are over 18's shop in the supermarket?

7240 people over 18 living in the town journey to a hypermarket toxshop regularly

What percentage of people over the age of 18 regularly shop in the hypermarket?

Steven

Originally Posted by Steven777

In a town of 25000 inhabitants, 80% are over 18 years of age

a) How many of the inhabitants are over the age of 18?

Find 80% of 25,000. (Hint: Multiply 25,000 by 0.80.)

Originally Posted by Steven777

b) Of these 37.5% usually shop in the town's supermarket. How many are over 18's shop in the supermarket?

Find 37.5% of the value you found in (a).

Originally Posted by Steven777

c) 7240 people over 18 living in the town journey to a hypermarket toxshop regularly. What percentage of people over the age of 18 regularly shop in the hypermarket?

Find the percentage that 7240 is of the value you found in (a). (Hint: Divide 7240 by the value in (a).)

Originally Posted by stapel

Find 18% of 25,000. (Hint: Multiply 25,000 by 0.18.)

No... Multiply it by 0.8, because it's more like 80% instead of 18%

37.5% of 20 000 = 7500

divide 7240 by 20000 i get = 0.362 is that right?

The question is divided into three sections.

1)number of inhabitants aboce 18 = 25000*0.8=20,000 inhabitants are above 18.


2)number of inhabitants above 18 usually shops in town super market
= 20000*0.375
= 7500

3)7240 people over 18 living in the town journey to a hypermarket toxshop regularly

percentage of people over the age of 18 regularly shop in the hypermarket
= (7240/20000)*100
= 36.2 percent