The given pie charts represent the distribution of candidates who enrolled for a bank clearical examination and the candidtes (out of those entrolled) who passed the examination, from five different institutes P, Q, R, Sand T. Study the pie charts and answer the question that follows.
(i) Total number of candidates who enrolled for the examination from five institutes = 5500
(ii) Total number of candidates who passed the examniation from five institutes = 3300
The average number of candidates passed from institutes P and Q together is what percentage of the total number of candidates enrolled from institutes P and Q together?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 25.2%
Average = Sum of all observations / Number of observations
The total no. of students enrolled in P = 20% of 5500 = 1100
The total no. of students enrolled in Q = 30% of 5500 = 1650
The total no. of students passed in P = 18% of 3300 = 594
The total no. of students passed in Q = 24% of 3300 = 792
The average of students who passed in P & Q = (594 + 792)/2 = 693
The required percentage = (693/2750) × 100
⇒ 25.2%