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CAT 2017 [slot 1] Question with solution 09

Question 9:
The number of girls appearing for an admission test is twice the number of boys. If 30% of the girls and 45% of the boys get admission, the percentage of candidates who do not get admission is
  1. 35
  2. 50
  3. 60
  4. 65
Option: 4

Let the number of girls be 2x and number of boys be x.

Girls getting admission = 0.6x

Boys getting admission = 0.45x

Number of students not getting admission = 3x - 0.6x -0.45x = 1.95x

Percentage = (1.95x/3x) × 100 = 65%

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