Question

blood group of ramu is O+ ve and Gopi is B + ve.Who can donate blood to whom, why

Answer 1

we can not donate blood Ramu because his blood group is O+. people who have O positive blood group they can not take blood from anyone. so the answer will be Gopi. he can take blood from Ramu.

Answer 2

O+ve is the universal donor. So Ramu can donate to any person, while Gopi can donate blood to those whose blood group is B+ve, since Gopi is B+ve.