Answer:
a) 60
b) about 5%
Step-by-step explanation:
a)
It appears that the "Over 60" segment is half the circle. Since the whole circle represents 120 people, half the circle will represent ...
1/2(120 people) = 60 people
__
b)
We expect a table or an angle measure to be provided along with the pie chart. In the absence of those clues, we must make an attempt to measure the angle of the "Under 25" sector. We're not sure how you're expected to do that. Perhaps you're to hold a protractor up to the computer screen.
Our attempt shows it to be 19°. (We expect it to be a multiple of 3°, since 120 people are represented by 360°.) Expressed as a percentage of the whole, this is ...
19°/360° × 100% = 5.277...% ≈ 5% . . . . of villagers are Under 25
_____
Additional comment
Measuring angles on a photograph is always tricky, because it is difficult to judge the effect of distortion on the angle being measured. Here, the picture is clearly taken at an angle to the screen, so we cannot be sure that the geometry is fairly represented by your attachment to the question.
These days, computer screen technology can render an image without much geometric distortion, so your best bet is to make a measurement on the screen. (This can actually be quite difficult on a touch-sensitive screen.) Printing the image introduces distortions of its own, so measurements from a printed copy may also have issues.
