Study the following table and answer the question:-
Numbers of students appeared (A) and passed (P) in an annual examination from four schools P, Q, R and S in five years (2014 to 2018).
The difference between the average no. of students passed from school R in 2014 to 2016 and the no. of students passed from school Q in 2014 is x. The value of x is?
Answer & explanation
Correct answer: option 2
No. of students passed in R in 2014 to 2016 = 275 + 280 + 264 = 819
Avg. = \(\frac{819}{3}\) = 273
No. of students passed from Q in 2014 = 340
Difference (x) = 340 - 273 = 67