Question

4) A survey was conducted to know the number of cars, buses and motorcycles that pass a

junction. The result is depicted in the following pie-chart. If there were 150 buses in the

survey then answer the following questions:

(i) What percentage of vehicles passing by the junction

were cars?

(ii) Calculate the total number of vehicles in the survey?

(iii) Find the number of motorcycles included in the survey​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

a.To convert the angle of a sector into a percentage, we use the formula:

Percentage of cars = angle of sector÷ 360° ×100% = 33 1/3 %

b.let X be the total number of cars

30° ÷ 360° × X = 150

X =1800