A survey was done in a small area in which 79 + 2x - 72x voters were men
5
and voters are women.
V9+2x
Read the above statement carefully and answer the following:
(A) Find x, if number of men is equal to number of women.
(i) 6
5
8
(iv) 9
(B) Which mathematical concept is used here?
(i)
Number system
(ii) Circle
Area
(iv) Statistics
(C) ap.al =
(i) apta
ap-a
apa
(iv) (pq)
(D
)
IL
73
-2
(i) 715
(ii) 715
Answers
Answer:Let I be the set of all citizens of India who were eligible to exercise their voting right in
general election held in 2019. A relation ‘R’ is defined on I as follows:
R = {(1, 2) ∶ 1, 2 ∈ and both use their voting right in general election – 2019}
1. Two neighbors X and Y∈ I. X exercised his voting right while Y did not cast her vote
in general election – 2019. Which of the following is true?
a. (X,Y) ∈R
b. (Y,X) ∈R
c. (X,X) ∉R
d. (X,Y) ∉R
2. Mr.’’ and his wife ‘’both exercised their voting right in general election -2019,
Which of the following is true?
a. both (X,W) and (W,X) ∈ R
b. (X,W) ∈ R but (W,X) ∉ R
c. both (X,W) and (W,X) ∉ R
d. (W,X) ∈ R but (X,W) ∉ R
3. Three friends F1, F2 and F3 exercised their voting right in general election-2019, then
which of the following is true?
a. (F1,F2 ) ∈R, (F2,F3) ∈ R and (F1,F3) ∈ R
b. (F1,F2 ) ∈ R, (F2,F3) ∈ R and (F1,F3) ∉ R
c. (F1,F2 ) ∈ R, (F2,F2) ∈R but (F3,F3) ∉ R
d. (F1,F2 ) ∉ R, (F2,F3) ∉ R and (F1,F3) ∉ R
Step-by-step explanation: