## Sets Quiz-2

Mathematics is an important subject in JEE ADVANCED and other engineering exams. In any engineering enterance exam, Mathematics carries weightage of 33% of questions. In mathematics a set is a collection of distinct elements. The elements that make up a set can be letters, numbers, points in space, lines, other geometrical shapes, variables, or even other sets. Two sets are equal if and only if they have precisely the same elements. With focused practice good marks can be fetched from this section. These questions are very important in achieving your success in JEE and Other Engineering Exams.

Q1. If A={p∈N:p is a prime and p=7n2+3n+3n for some n∈N}, then the number of elements in the set A, is
•  1
•  2
•  3
•  4
Solution
Q2.In Q.No 6, ⋂10n=3 An=
•  {3,5,7,11,13,17,19}
•  {2,3,5}
•  {2,3,5,7,11,13,17}
•  {3,5,7}
Solution
Q3.  The relation ‘is subset of’ on the power set P(A) of a set A is
•  Symmetric
•  Anti-symmetric
•  Equivalence relation
•  None of these
Solution

Q4. If A and B are two given sets, then A∩(A∩B)c is equal to
•  A
•  B
•  Î¦
•  A∩Bc
Solution
Q5.Let Y={1,2,3,4,5},A{1,2},B={3,4,5} and Ï• denotes null set. If (A×B) denotes cartesian product of the sets A and B; then (Y×A)∩(Y×B) is
•  Y
•  A
•  B
•  Ï•
Solution
Q6. If A and B are two sets such that n(A)=7,n(B)=6 and (A∩B)≠Ï•. The least possible value of n(A Î” B), is
•  1
•  7
• 6
•  13
Solution

Q7.If A,B and C are three sets such that A⊃B⊃C, then (A∪B∪C)-(A∩B∩C)=
•  A-B
•  B-C
•  A-C
•  None of these
Solution

Q8.If An is the set of first n prime numbers, then ⋃10(n=2) An=
•  {2,3,5,7,11,13,17,19}
•  {2,3,5,7,11,13,17,19,23,29}
•  {3,5}
•  {2,3}
Solution
Q9.A,B and C are three non-empty sets. If A⊂B and B⊂C, then which of the following is true?
•  B-A=C-B
•  A∩B∩C=B
•  A∪B=B∩C
•  A∪B∪C=A
Solution
Q10. In an election, two contestants A and B contested x% of the total voters voted for A and (x+20)% for B. If 20% of the voters did not vote, then x=
•  30
•  25
•  40
• 35
Solution

#### Written by: AUTHORNAME

AUTHORDESCRIPTION

## Want to know more

Please fill in the details below:

## Latest NEET Articles\$type=three\$c=3\$author=hide\$comment=hide\$rm=hide\$date=hide\$snippet=hide

Name

ltr
item
BEST NEET COACHING CENTER | BEST IIT JEE COACHING INSTITUTE | BEST NEET & IIT JEE COACHING: Sets-Quiz-2
Sets-Quiz-2