Direction: This is a pie-chart for the data on A, B, O, AB blood groups of 150 donors. Observe the pie-chart and answer the questions.
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The number of donors having blood group ‘O’ is :
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- 50
- 42
- 30
- 34
Correct Option: B
As per the given pie chart in question ,
Total number of A, B, O and AB blood groups of donors = 150
The corresponding angle of blood group ‘O’ donors = 100.8°
The corresponding angle of all blood group donors = 360°
| Number of blood group ‘O’ donors = | × Total number of all blood groups of donors | The corresponding angle of all blood group donors |
| Number of blood group ‘O’ donors = | × 150 = 42 | 360 |
