Examining the blood test, Mrs. Smith and Mrs. Jones had

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April 26, 2020
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April 26, 2020

Examining the blood test, Mrs. Smith and Mrs. Jones had

Mrs. Smith and Mrs. Jones had baby girls same day in same hospital.  Mrs. Smith named her baby Shirley and Mrs. Jones named her baby Jane.  Mrs. Jones began to suspect but that the babies had been switched.  Blood tests were done with the following results:

Mr. Smith type A 

Mr. Jones type A

Mrs. Smith type B 

Mrs. Jones type A

Shirley type O

Jane type B

Explain whether a mix up had occurred?