In a row of people all facing north, Rikshit is 31st from the right end and Palak is 32nd from the right end. The number of people between Palak and Rikshit is same as the number of people between Palak and Huma. If Huma is 10th from the left end of the row, how many people are there in the row?

Given: 

In a row of people all facing north, Rikshit is 31st from the right end and Palak is 32nd from the right end.

The number of people between Palak and Rikshit is same as the number of people between Palak and Huma.

If Huma is 10th from the left end of the row.

Solution: 

Rikshit is 31st from the right and Palak 32nd → they are adjacent, so number of people between them = 0.
That means Huma must also be adjacent to Palak, so Huma is 33rd from the right.
Using Formula:

Total people = Position from left + Position from right − 1

= 10 + 33 − 1

= 42

So, 42 people are there in the row.

Thus, correct option is (d).