Direction: The pie- chart given below shows the usage of materials in the construction of a house. Study the chart and answers the questions :
-
The percentage of steel used in the construction of the house is
-
- 10%
- 12%
- 20%
- 36%
Correct Option: A
On the basis of given pie chart in question ,
Corresponding angle for steel = 36°
∵ 360° ≡ 100%
| ∴ 1% = | 360 |
| ∴ 36% ≡ $ |  | 100 | × 36° |  | % = 10% |
| 360 |
