2023 · Q78
Directions: The next three items are based on a survey on occurrence of vowels in a certain book irrespective of whether they are in upper or lower case.
Vowel: A=20%, E=45%, I=15%, O=8%, U=12%
For how many pairs of vowels is the chance of occurrence of any one of the two more than 34% in the book?
general-mental-abilitydata-interpretation
- A4
- B5
- C6
- D7
Explanation
Adding the occurrence percentages pairwise: A+E = 65, A+I = 35, E+I = 60, E+O = 53 and E+U = 57 all exceed 34 percent. The remaining pairs, A+O = 28, A+U = 32, I+O = 23, I+U = 27 and O+U = 20, do not. Exactly 5 pairs of vowels satisfy the condition. Hence option B.