Question

Five boys Aj. A.. A3, A4 and As are sitting on a stair in the following way
I. Az is above A1. II. A, is under A..
III. A is under A1. IV. A. is between A, and Az.
Who is at the lowest position of the stair ?​

Answer 1

Given  :  Five boys A1, A2, A3, A4, A5, are sitting on the ladder in this way  

A5 is above A1,

A3 under A2,

A2 under A1  

A4 above A 3 .

To Find :  Who sits at the bottom

Solution:

A5 is above A1,    , A2 under A1  , A3 under A2,

A5

A1

A2  

A3

A4 above A 3

A5  / A4

A1   / A4

A2  / A4

A3

Hence A3 is at the lowest position of the stair

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