SSC
Sample Paper
Mock Test-1 SSC CGL Tear-II Paper-1
question_answer
In an exam, the average was found to be 50 marks. After deducting computational errors the marks of the 100 candidates had to be changed from 90 to 60 each and the average came down to 45 marks. The total number of candidates who took the exam were
A)150
B) 350
C) 600
D) 700
Correct Answer:
C
Solution :
Total number of candidates =x \[\therefore \] \[\frac{50x-100(90-60)}{x}=45\] \[\therefore \] \[x=600\]