CAT 2017 Slot 1 QA Question & Solution
ArithmeticEasy
Question
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
Options
35
50
60
65
Solution
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%