UGC NET Logical Reasoning Q17

Question

Certain number of birds are sitting on two trees A and B. If a bird from the tree B goes to the tree A, then no. of birds on the two trees become equal. However, if a bird from tree A goes to tree B, then the no. of birds on the tree B becomes twice that of A. How many birds are there on the trees A and B, respectively?

Accepted Answer

C