Directions: The total number of candidates who appeared and qualified in a competitive examination from different cities is given in the following bar graph. Study the bar graph carefully and answer the following question.
What is the difference between the average number of appeared candidates and the average number of qualified candidates in the exam from all the cities?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 650.
The average number of appeared candidates = (2500 + 3000 + 4500 + 1200)/4 = 11200/4 = 2800
The average number of qualified candidates in the exam = (1350 + 2500 + 3900 + 850)/4 = 2150
Hence,
The required difference = 2800 - 2150 = 650