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).

Find the ratio of no. of students appeared in school R to the no. of students passed in school S from 2014 to 2018.

470 : 331

No. of students appeared in R = 420 + 350 + 330 + 380 + 400 = 1880

No. of students passed in S = 225 + 228 + 256 + 315 + 300 = 1324

Req. Ratio = 1880 : 1324 = 470 : 331