Maximum Persons Standing Ahead in Queue

CAT 2022 Slot 1 · QA · Medium · Ratio and Proportion

Pinky is standing in a queue at a ticket counter. Suppose the ratio of the number of persons standing ahead of Pinky to the number of persons standing behind her in the queue is 3:53 : 5. If the total number of persons in the queue is less than 300, then the maximum possible number of persons standing ahead of Pinky is

Answer

111

Explanation

Let the number of persons standing ahead of Pinky be 3k3k and behind her be 5k5k. Total number of persons in the queue =3k+5k+1=8k+1= 3k + 5k + 1 = 8k + 1 (including Pinky).

We are given: 8k+1<3008k + 1 < 300 8k<2998k < 299 k<37.375k < 37.375

Since kk is an integer, the maximum value of kk is 3737.

The maximum possible number of persons standing ahead of Pinky is: 3k=3×37=1113k = 3 \times 37 = 111

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