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The histogram shows the ages of all the workers in a London office. Given that 24 people are in the 40 - 55 age range, work out the total number of people in the office

The Histogram Shows The Ages Of All The Workers In A London Office Given That 24 People Are In The 40 55 Age Range Work Out The Total Number Of People In The Of class=

Sagot :

homeworkmaker121219

Answer:

40 people

Step-by-step explanation:

First thing, you have to find the area below the 40 - 55 line in the histogram. The area can be find using the area of a rectangle: side × side

Doing this you'll find an area of 60.

After that, find the total area of the histogram in the same way: separate it in rectangles and use the formula for the area of a rectangle, and after you'll find a total area of 100

Now you have to do a rule of three:

We know from the question statement that the amount of people with 40 - 55 years old is 25, and that area correspond to 60, so:

60 ------- 24

100 ------- x

60•x = 24•100

60x = 2400

x = 2400/60

x = 40

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