Directions (1 - 4): 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.
The ratio of donors blood group ‘A’ to the average of the donors group ‘O’, ‘B’ and ‘AB’ is:
A. 4 : 3
B. 4 : 5
C. 5 : 4
D. 3 : 4
Answer: Option D
Solution(By Examveda Team)
Average of O, B, AB blood group$$\eqalign{ & = \frac{100.8° + 129.6° + 57.6°}{3} \cr & = \frac{288°}{3} \cr & = 96° \cr & \therefore \text{Required ratio} \cr & = 72° : 96° \cr & = 3 : 4 \cr} $$
This Question Belongs to Data Interpretation >> Pie Chart
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