The number of donors having group ‘O’ is:
The number of donors having group ‘O’ is: Correct Answer 42
The number of donor having group O$$\eqalign{& = \frac{100.8°}{360}\times150 \cr& = 42 \cr} $$
The number of donors having group ‘O’ is: Correct Answer 42
The number of donor having group O