Question

At an UberX queue at Bengaluru airport, Ram is 6th from the left and Laxman is 10th from the right. When they interchange their positions, Ram becomes 12th from the left. How many people are in the queue?​

Answer 1

Given :  At an UberX queue at Bengaluru airport, Ram is 6th from the left and Laxman is 10th from the right. When they interchange their positions, Ram becomes 12th from the left.

To find : How many people are in the queue

Solution:

1   2    3   4    5   6  7   8   9   (10  Laxman) .........(6 Ram)    5  4  3    2  1

Interchanges their position

1   2    3   4    5   6  7   8   9  ( 10   Ram) .........(6 Laxman)    5  4  3    2  1

Ram becomes 12 th from right

1   2    3   4    5   6  7   8   9   (10   Ram) .........(Laxman) 6  5  4  3    2  1

                                               (12  Ram )   11  10  9 8  7  6  5  4  3    2  1

Ram is 10th from Right  & 12th from left

Hence 9 people are on left of Ram & 11 people are on right of Ram

9 + 11 + 1  ( Ram)

= 21

21 people are there in Queue

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