Question

The following table gives the number of students in class
VIII to XII in a school in two consecutive academic years
- I and II
. Students who are in a class in year II, say
class VIII are those who passed from the just lower
class, i.e. class VII in year I along with students who
failed in class VIII in year I. No new student joins and no
student leaves any of the given classes in the two years.
Each year, students who pass the annual exams are
promoted to the next class while students who fail have
to stay in the same class. It is known that the total
number of students who failed in the five classes
together in year I is the minimum possible
class. year 1. year ll
Vlll. 37 35
lX. 42 37
X 48 39
Xl 36 50
xll 31 38

How many students passed out of class XII in year 1?
(A) 29
(B) 27
(C) 31
(D) None of these​

Answer 1

Step-by-step explanation:

The following table gives the number of students in class

VIII to XII in a school in two consecutive academic years

- I and II

. Students who are in a class in year II, say

class VIII are those who passed from the just lower

class, i.e. class VII in year I along with students who

failed in class VIII in year I. No new student joins and no

student leaves any of the given classes in the two years.

Each year, students who pass the annual exams are

promoted to the next class while students who fail have

to stay in the same class. It is known that the total

number of students who failed in the five classes

together in year I is the minimum possible

class. year 1. year ll

Vlll. 37 35

lX. 42 37

X 48 39

Xl 36 50

xll 31 38

How many students passed out of class XII in year 1?

(A) 29

(B) 27

(C) 31

(D) None of these bala

Answer 2

How many students passed out of class XII in year 1?

(A) 29

(B) 27

(C) 31

(D) None of these

ans is 27