Question

B) How many more 18-year

Answer 1

The number if 18-year old 12-year old students that took part in the survey is 320.

• The number of more 18-year old students than 12-year old students that spent between  25 and  35 mins on social media is 20.

What is the survey about?

Looking at the survey chart one can see that the total number of 18year old that partook of the survey are:

30 + 20 + 60 + 70 + 40 + 60 + 40

= 340

From the diagram , 18 year old = 60

                                 12 year old = 40

The differences will be:

= 60 - 40

= 20

Therefore, The number if 18-year old 12-year old students that took part in the survey is 320 and  the number of more 18-year old students than 12-year old students that spent between  25 and  35 mins on social media is 20.

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