The following table shows the numbers of chairs made of plastic and of steel in 5 different colours that were sold from a furniture showroom during a sale.
|
Colour |
Steel |
Plastic |
|
C1 |
10 |
12 |
|
C2 |
12 |
6 |
|
C3 |
8 |
14 |
|
C4 |
6 |
18 |
|
C5 |
9 |
11 |
The total number of chairs of colour C3 sold are what percentage of all the chairs of these 5 colours sold, both plastic and steel ones put together? [Give your answer correct to 2 decimal places.]
Answer & explanation
Correct answer: option 2
Total chairs sold of C3 = 8 + 14 = 22
Total number of chairs of both plastic and steel = 10 + 12 + 12 + 6 + 8 + 14 + 6 + 18 + 9 + 11
= 106
Required percentage = \(\frac{22 }{106}\) × 100
= 20.75%