Pl help in answering the question as attached.

Let’s say the current in 5 ohm branch is I.
This current gets divided into 2 ohm resistor and 4 ohm resistor.

Let current in 2 ohm branch be I₁,so current in 4 ohm branch will be I-I₁.
Then the potential difference across 2 ohm and 4 ohm resistor will be same.

2I₁=4(I-I₁) =>I₁=(2/3)I

As the total current is not given , hence we cannot put the value of I.