Question

A group of people were asked about their favourite car colour.
The result is shown by the following pie chart.
a) Find the value of x
b) If 90 people like silver, find the total number of people in
the group.
c) Find the percentage of people who like blue cars.
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Answer 1

Step-by-step explanation:

a) 4x° + 5x° + 90° = 360°

9x° = 270°

x= 30

b) Let total number of people be x

90/360 × x = 90

x = 360

c) 5x/360 × 100% = 150/360 × 100% = 41.67%

Answer 2

Answer:

a) sum of angles will be 360° if silver side is 90° the Remaining will be 270°

270°=5x+4x

270°=9x

270°/9=x

30°=x

x=30°

b)90 people like silver,we know that silver is 90° and total is 360°,so total people are 360.

c)we know that x people means 30, and blue is 5x,so 5x people means 5*30 = 150 people like blue cars.

150/360*100= 41.66% peole like blue cars.