Question

The blood groups of 30 students of Class IX are recorded as follows: ( 4 )
A, B, O, O, AB, O, A, O, B, A, O, B, A, O,
O, A, AB, O, A, A, O, O, AB, B, A, O, B, A,
B, O.
1. Which is most common blood group?
(a) A (b) B (c) AB (d) O
2. Which is the rarest blood group?
(a) A (b) B (c) AB (d) O
3. How many students have Universal Donor blood group?
(a) 3 (b) 6 (c) 9 (d) 12
4. How many students have Universal Acceptor blood group?
(a) 3 (b) 6 (c) 9 (d) 12
5. How many types of blood groups are present?
(a) 1 (b) 2 (c) 3 (d) 4

Answer 1

Answer:

Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.

Step-by-step explanation:

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Answer 2

Answer:

1) d). O

2) c) AB

3) d) 12

4) a) 3

5) d) 4

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