Explanation:

Correct option 1: 34

We are given:

Everyone is facing north.

Madhu is 13th from the left end.

Seema is 15th from the right end.

Rakesh is 2nd to the right of Madhu.

Rakesh is 5th to the left of Seema.

We need to find the total number of persons in the row.

Step-by-step Breakdown:

Step 1: Position of Madhu
Madhu is 13th from the left.

So, her position = 13

Step 2: Position of Rakesh
Rakesh is 2nd to the right of Madhu, so:

Rakesh’s position = Madhu’s position + 2 = 13 + 2 = 15

Step 3: Rakesh is 5th to the left of Seema
That means:

Rakesh’s position = Seema’s position - 5
=> Seema’s position = Rakesh’s position + 5 = 15 + 5 = 20

So, Seema is at position 20 from the left end.

Step 4: Seema is also 15th from the right end.
We can now use the formula:

Total persons = Position from left + Position from right - 1

So,

Total = 20 (from left) + 15 (from right) - 1 = 34