There is a group of six people S, V, O, Y, X and T, each having a different height. Each one of them is in a different class. O is taller than V but shorter than T. S, V and O are in class 9, 7 and 3, respectively. S is the tallest and in the highest class. X is taller than Y but shorter than V. T is in a class senior to Y but junior to V. X is in a class senior to V.  Who is in a class senior but shorter than V?

Option 1 : X

No. of persons- 6

Name of persons- S, V, O, Y, X and T

•  Firstly, arranging them in the order of their classes:

1. S is in the highest class. S, V and O are in class 9, 7 and 3, respectively. X is in a class senior to V.

[ alt="Pic155" src="//storage.googleapis.com/tb-img/production/22/05/Pic155.png" style="width: 170px; height: 31px;">

2. T is in a class senior to Y but junior to V.

[ alt="Pic156" src="//storage.googleapis.com/tb-img/production/22/05/Pic156.png" style="width: 270px; height: 87px;">

• Then, arranging them in the order of their height:

1. O is taller than V but shorter than T. X is taller than Y but shorter than V.

[ alt="Pic157" src="//storage.googleapis.com/tb-img/production/22/05/Pic157.png" style="width: 115px; height: 20px;">

2. S is the tallest in the highest class.

[ alt="Pic158" src="//storage.googleapis.com/tb-img/production/22/05/Pic158.png" style="width: 140px; height: 21px;">

Persons senior to V in all cases: S and X

Persons shorter than V: X and Y

Thus, 'X' is the only person senior but shorter than V.

Hence, 'option 1' is the correct answer.