Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
61 views
in Reasoning by (106k points)
closed by

How many students in the class do not have a mobile phone?

1) 30 students have a mobile phone in the classroom

2) There are a total of 50 students in the classroom


1. Data in both the statements I and II is not sufficient to answer the question
2. Data in statement I alone is sufficient to answer the question.
3. Data in statement II alone is sufficient to answer the question
4. The data given in both statements I and II together are necessary.

1 Answer

0 votes
by (106k points)
selected by
 
Best answer
Correct Answer - Option 4 : The data given in both statements I and II together are necessary.

As per the statement:

I. 30 students have a mobile phone in the classroom

From this statement, we cannot conclude the total number of students in the class.

As the total number of students is unknown, this statement is alone not sufficient to answer how many students in the class do not have a mobile phone.

II. There are a total of 50 students in the classroom

From this statement, we can conclude the total number of students in the class.

Thus using both the statements we can say:

I) Total number of students in the classroom = 50

ii) 30 students have a mobile phone in the classroom.

Number of students who don't have a mobile phone = 50 - 30 = 20

∴ As it can be seen that both statement are required to obtain the number of students who don't have mobile phones.

Hence, the correct answer is "The data given in both statements I and II together are necessary"

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...