In a school there are 20 teachers who te...

In a school there are 20 teachers who teach mathematics or physics. Of these, 12 teach mathematics and 4 teach both physics and mathematics. How many teach physics ?

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

SETS
NCERT TAMIL|Exercise EXERCISE 1.1|33 Videos
SETS
NCERT TAMIL|Exercise EXERCISE 1.2|21 Videos
SEQUENCES AND SERIES
NCERT TAMIL|Exercise Miscellaneous Exercise On Chapter 9|32 Videos
SETS, RELATIONS AND FUNCTIONS
NCERT TAMIL|Exercise EXERCISE 1.5|25 Videos

Similar Questions

Explore conceptually related problems

In a school there are 20 teachers who teach mathematics or physics. Of these, 12 teachers teach mathematics and 4 teachers teach both physics and mathematics. How many of these teachers teach physics?

Describe the relation of Physics with mathematics

A class has 175 students. The following data shows the number of students opting one or more subjects. Mathematics 100, Physics 70, Chemistry 40, Mathematics and Physics 30, Mathematics and Chemistry 28, Physics and Chemistry 23, Mathematics, Physics and Chemistry 18. How many students have offered Mathematics alone?

The number of students who take both the subjects mathematics and chemistry is 30. This represents 10% of the enrolment in mathematics and 12% of the enrolment in chemistry. How may students take at least one of these two subjects?

In a class there are 40 students, 26 have opted for Mathematics and 24 have opted Science. How many student have opted for Mathematics and Science.

In a class of 60 students 40 passed in English, 35 failed in Mathematics. How many students passed both in English and Mathematics.

In a class of 50 students, each of the students passed either in mathematics or in a science or in both 10 students passed in both and 28 passed in science. Find how many students passed in mathematics only.

NCERT TAMIL-SETS-MISCELLANEOUS EXERCISE ON CHAPTER 1

In a school there are 20 teachers who teach mathematics or physics. Of...
Text Solution
|
Decide, among the following sets, which sets are subsets of one and a...
Text Solution
|
Determine whether the statement is true or false. If it is true, prove...
Text Solution
|
In each of the following, determine whether the statement is true or f...
Text Solution
|
Determine whether the statement is true or false. If it is true, prove...
Text Solution
|
In each of the following, determine whether the statement is true or f...
Text Solution
|
In each of the following, determine whether the statement is true or f...
Text Solution
|
In each of the following, determine whether the statement is true or f...
Text Solution
|
Let A, B, and C be the sets such that A ∪ B = A ∪ C and A ∩ B = A ∩ C....
Text Solution
|
Show that the following four conditions are equivalent : A ⊂ B
Text Solution
|
Show that the following four conditions are equivalent : A – B = φ
Text Solution
|
Show that the following four conditions are equivalent : A ∪ B = B
Text Solution
|
Show that the following four conditions are equivalent : A ∩ B = A
Text Solution
|
Show that if A ⊂ B, then C – B ⊂ C – A.
Text Solution
|
Assume that P ( A ) = P ( B ). Show that A = B
Text Solution
|
Is it true that for any sets A and B, P ( A ) ∪ P ( B ) = P ( A ∪ B )?...
Text Solution
|
Show that for any sets A and B, A = ( A ∩ B ) ∪ ( A – B ) and A ∪ ...
Text Solution
|
Using properties of sets, show that A ∪ ( A ∩ B ) = A
Text Solution
|
Using properties of sets, show that A ∩ ( A ∪ B ) = A.
Text Solution
|
Show that A ∩ B = A ∩ C need not imply B = C.
Text Solution
|
Let A and B be sets. If AcapX=BcapX=phi and AcupX=BcupX for some set X...
Text Solution
|