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If the number of students who appeared for the exam in schools A and E forms 20% and 25% respectively of the total students who appeared for the exams in the given six schools, then what is the approximate ratio of the students who failed in schools A and E?

A.	2:3	B.	4:5
C.	3:4	D.	1:1
E.	5:4

Answer and Explanation

Answer:3:4

Explanation:
Let us assume that the total number of students appeared for exams in the given six schools = 1000. Number of students who appeared for exams in school
=> A = 2000
=> That in school E = 2500
=> Number, of students who failed in school
=> A = 2000 x 52 / 100 = 1040
=> Number of students who failed in school
=> E = 2500 x 55 / 100 = 1375
Required ratio = 1040/1375 = 208/275 = ¾

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