Hexaware Sets, Theory and Functions Quiz 1

Question 1

Time: 00:00:00
Ankit started a startup with 300 employees in the company, Each manager has 5 interns and every intern has allotted 60 tasks daily. The number of interns is:

25

25

30

30

15

15

60

60

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Question 2

Time: 00:00:00
The function f : R → R defined by f (x) = ex is ________.

 

into

into

onto

onto

None of the above

None of the above

one -one

one -one

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Question 3

Time: 00:00:00
If M and N are two sets satisfying M-N = N-M,  then which one of the following is correct?

 

 

M n N = ϕ  

M n N = ϕ  

M = N  

M = N  

M u N = ϕ  

M u N = ϕ  

M = ϕ

M = ϕ

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Question 4

Time: 00:00:00
A playground had 240 Players, from which 10% were able to play all the 3 games Football, rugby and cricket. 60 students were able to play any and only 2 games. Only 80 Students were able to play football. Calculate the total number of students who were able to play only rugby and only cricket?

78

78

24

24

80

80

76

76

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Question 5

Time: 00:00:00
In a class of 40 pupils, Spanish was chosen by 22 students, while 12 students chose Chinese. Nevertheless, each pupil chose at least one of the two languages. Determine the total number of students that picked Spanish as their exclusive language of study rather than Chinese.

 

 

17

17

19

19

18

18

20

20

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Question 6

Time: 00:00:00
If  70% of the audience prefers to watch DC movies, 90% loves to watch marvel movies , and 98% like to watch disney movies. Calculate the proportion of the audience who like to watch movies of all three studios?

 

70

70

68

68

58

58

48

48

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Question 7

Time: 00:00:00
If UNO cards have = {1, 3, 5, 7, 9, 11, 13}, then which of the following are subsets of UNO cards.
B = {2, 4}
A = {0}
C = {1, 9, 5, 13}
D = {5, 11, 1}
E = {13, 7, 9, 11, 5, 3, 1}
F = {2, 3, 4, 5}

 

C,D,E are the subsets of UNO cards

C,D,E are the subsets of UNO cards

A and B are subsets of UNO cards

A and B are subsets of UNO cards

C and D are the subsets of UNO cards

C and D are the subsets of UNO cards

C and E are the subsets of UNO cards

C and E are the subsets of UNO cards

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Question 8

Time: 00:00:00
Let A = {1, 2, 3}, B = {4, 5, 6, 7} and let f = {(1, 4), (2, 5), (3, 6)} be a function from A to B. Which function is f ?

One-one Function

One-one Function

Many-one Function

Many-one Function

None of the above

None of the above

Onto Function

Onto Function

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Question 9

Time: 00:00:00
Show that the relation R defined in the set A of all triangles as R = {(T1, T2): T1 is similar to T2}, is an equivalence relation. Consider three right angle triangles T1 with sides 3, 4, 5, T2 with sides 5, 12, 13 and T3 with sides 6, 8, 10. Which triangles among T1, T2 and T3 are related?

T1-T3

T1-T3

T1-T2

T1-T2

T2-T3

T2-T3

None

None

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Question 10

Time: 00:00:00
It was discovered that 80 employees at one office preferred an iPhone, while 60 went for an Android phone. 20 people, on the other hand, didn't care, so they could pick from any of them. If each person could only have one of the options, how many people would choose the both Iphone and android?

 

130

130

140

140

120

120

110

110

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["0","40","60","80","100"]
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