Question

If your 9th person in a square starting from
one end and 11th from another end, what is
the number of persons in the queue?
(a) 20 (b) 19
(c) 21 (d) 18

Answer 1

12345678u10987654321 there are 19 in the queue I.e. (b) option

Answer 2

Answer:

The correct answer is Option B : $19$

Step-by-step explanation:

Total number of persons standing in a queue $=$ position of a person from one end $+$ position of a person from the other end $-1$

Therefore, total number of persons in the queue $=9$ ($9^{th}$ person from one end) $+11$ ($11^{th}$ person from the other end) $-1=19$

Hence, $19$ is the correct answer.