These question are based on the following information.
The blood group of five persons—Gopi, Hari, Madhu, Sabha and John—O+, B+, AB+, B- and A- not necessarily in the same order. The blood groups of no two persons are the same. We know the following additional information.
Gopi's blood group is neither B+ nor AB+.
Madhu's blood group is either A- or O+.
Sabha's blood group is O+.
John's blood group is either B+ or B-.
Who has A- group?
Show answer & explanation
Correct answer: A
Explanation
Given information:
• Five persons: Gopi, Hari, Madhu, Sabha, and John.
• Five blood groups: O+, B+, AB+, B-, and A-.
Step-by-step deductions:
• Sabha: Blood group is O+.
• Madhu: Blood group is either A- or O+. Since Sabha is O+, Madhu must have A-.
Therefore, Madhu has the A- blood group.
Correct Answer: (A) Madhu