Mathematics
Thursday, 28 November 2013|
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Mid Term; 2013
Class Seven Subject
Mathematics
Time:2 hours Sectoin
A Marks 100
Choose the right choice from the following
All questions are equal
marks
QNo.1: If A={1,2,3,4},B={3,4,5,6}
then A and B are……..?
(a)Disjoint set (b)Overlapping set (c)Equal set (d) N,O,T
QNo.2: If A={1,2,3,4,},B={3,4,5,6}and C={4,5,6,7,8,9,10}
then Au(B
C) ?
(a){1,2,3,4,5,6} (b){2,3,4,5,6} (c){1,2,3,4,5} (d) N,O,T
QNo.3: If U={a,b,c,d,e,f,g,h}, X={a,b,c,d,e}and Y={d,e,f,g,h} then Ý?
(a){d,e,f} (b){e,f,g} (c){f,g,h} (d) N,O,T
QNo.4: If A={a,b,c,d}
then P(A) ?
(a) 12 (b) 14 (c) 16 (d) N,O,T
QNo.5: If A={1,2,3,4,5,6,………..}
then A is ………?
(a) Finite set (b) Infinite set (c) Null set (d) N,O,T
QNo.6: If A={2,4,6,8},
B={a,b,c,d} then A and B are ……..?
(a) Overlapping set (b) Disjoint set (c) Equal set (d) N,O,T
QNo.7:If A={1,2,3},
B={3,1,2} then A and B are …………?
(a) Equivalent set (b) Disjoint set (c) Equal set
(d) N,O,T
QNo.8: If A={1,3,5,7,9} , B={5,7,9,11,13} then B-A
?
(a) {1,3} (b) {3,5} (c) {5,7}
(d) N,O,T
QNo.9: If A={x,y,z},
B={a,b,y,z} then A B ?
(a) {x,y} (b) {y,z} (c) {x,z} (d) N,O,T
QNo.10: If A={1,2,3,4} , B={3,4,5,6} then AuB ?
(a) {1,2,3,4,5,6} (b) {1,2,3,4,5} (c) {2,3,4,5,6} (d) N,O,T
Mid Term; 2013
Class Seven Subject
Mathematics
Time:2 hours Sectoin
B Marks 100
All questions are equal
marks
QNo.1: If A={2,4,6,8}, B={1,3,5,7}and
C={2,4,5,7,9} then find the following sets ?
Prove that i: AuB = BuA ii: B
C = C B .
QNo.2: If U={7,8,9,10,11,12,13}, A={7,9,11,13}and
B={8,10,12} then find the following ?
Prove that i: (AuB)’ ii: A’
B’ .
QNo.3: Simplify by using
the distributive property of
Multiplication over addition or
subtraction?
i: 1/2x(2/3+3/4) = 1/2x2/3 + 1/2x3/4.
ii: 1 1/2x(2 2/3 – 1 1/3) = 1 1/2x2 2/3
– 1 1/2x1 1/3.
QNo.4: Union
and Intersection of three sets ?
If A={1,2,3,4}, B={3,4,5,6}and
C={4,5,6,7,8,9,10}
then find the following ?
Prove that
i: A (B C)
ii: (AuB) C .
QNo.5: Simplify the following ?
i: 1 3/4 ÷ [9 5/8 ÷{2/5 + (8 2/5x4 1/6
– 3 1/2)}] .
ii: [1/2 + {(3/4 ÷ 9/16)x 1 1/2} – 2
1/4] .
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