How many integers satisfy -4 ≤ 2x + 1 ≤ 6?
2 answers:
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Answer:
50% is the answer.
Step-by-step explanation:
All three persons have different blood groups.
Mary has O blood type.
Her husband has B blood type.
Her father in law has A blood type.
As everyone has different blood groups and the child's group depends on parents blood groups so we have 2 options left.
Hence, the probability that the child will have type O blood is = =50%