Quantitative Aptitude – Arithmetic – Average


Slot – 1 – Quantitative Aptitude – Arithmetic – Average – Ramesh and Gautam are among 22 students

Q. Ramesh and Gautam are among 22 students who write an examination. Ramesh scores 82.5. The average score of the 21 students other than Gautam is 62. The average score of all the 22 students is one more than the average score of the 21 students other than Ramesh. The score of Gautam is?
  1. 48
  2. 53
  3. 51
  4. 49
Answer: 51

Solution: Let the score of Gautam =x
Total marks of all the students = 21*62 +x
As per question The average score of all the 22 students is one more than the average score of the 21 students other than Ramesh,
Or (21*62 +x)/22 -1 = (21*62 +x – 82.5)/21
(21*62 + x -22)/22 = (21*62 +x – 82.5)/21
On solving x =51

Online Coaching Course for CAT 2020

a) 900+ Videos covering entire CAT syllabus
b) 2 Live Classes (online) every week for doubt clarification
c) Study Material & PDFs for practice and understanding
d) 10 Mock Tests in the latest pattern
e) Previous Year Questions solved on video