Methods and techniques of Business Data Analysis

Question Paper 20 Pages

Bengaluru City University

Bachelor of Business Administration

Contributed by

Prajwal Hallale

MESIOM, Rajajinagar MTBDA Smt Divyashree D V
1

Methods and techniques of Business Data Analysis
Chapter wise previous year question papers questions
2018-2013

Chapter 1: Number system

2018

1. Find the HCF of 20 and 50.
2. What are irrational numbers give examples.
3. What are rational numbers?
4. Find the HCF 3024,4752,7488.

2017

1. The LCM and HCF of two numbers is 180 and 3. If one of the number is 27. Find
other.
2. What are rational numbers?
3. Find the largest number less than 842 divisible by 18,27,12

2016

1. Find the HCF of 36 and 54.
2. What are irrational numbers give examples.
3. Find the LCM and HCF 32, 48 show steps

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MESIOM, Rajajinagar MTBDA Smt Divyashree D V
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2015

1. Find the HCF of 144,348,444.
2. What are prime numbers?

2014

1. Find the LCM of 36,72,144,2100.
2. What are real numbers?
3. Define integers

2013

1. Find the LCM of 15,50,150.
2. What are real numbers? Give examples

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Chapter 2: Theory of equations

2018

1. Find x: x-6=0.
2. The sum of three consecutive numbers is 166. Find numbers.
3. A father is 28 years older than his son. In 5 years the father will be 7 years more
than twice that of his son. Find the present ages.
4. Mention the types of equations.
5. Solve for x, (5x+1)(x+3)= 3(x-1)
6. Solve 9x
2
-3x-2=0 using formula method.
7. The age of the father is 4 times that of his son,5 years ago the father is 7 times that
of his son. Find the present ages.
8. Solve by elimination method 2x-3y=19
3x+2y=9

2017

1. Find x, x+5+x=5.
2. Divide 1600/- between A,B and C such that B have 100/- more than A and c 200/-
more than B.
3. The weekly wages of 30 persons consisting of men and women amount to 3800/-
each man receives 140/- and each woman receives 100/- as wages per week. Find
the number of men and women.
4. 3 pounds of coffee and 8 pounds of tea cost 1080/-. 5 pounds of coffee and 8
pounds of tea cost 1140/-. Find the cost of coffee and tea per pound
5. What are simultaneous equations?
6. Solve for x, (x+1) – (x-2) = (x+4) + ( 7 )
2 3 5 15
7. Solve for x, 6x+(15/x)= 19
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MESIOM, Rajajinagar MTBDA Smt Divyashree D V
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8. Solve x
2
-3x=10 using formula method.
9. Solve by elimination method 2x-5y=16
5x+6y=3

2016

1. Divide 110/- into two parts such that 5 times of one part together with 6 times the
other part is equal to 610/-.
2. Solve x, 3x
2
-27=0
3. Solve by elimination method , ( 8 ) – ( 9 ) = 1
x y
( 10 ) + ( 3 ) = 12
x y 2

4. Solve the equation : x
2
- 8x + 25= x (x - 4) – 25 (x - 5) – 25 (x - 5) - 16
5. Write the meaning of quadratic equations?
6. Solve by formula method ( 6x ) + 6( x+1 ) = 13
x+1 x

7. Solve for x by formula method, ( 1 ) + ( 2 ) = ( 6 )
x-2 x-1 x
8. Solve by substitution method 10x-9y=12
3x-9y=17
2015

1. What are quadratic equations?
2. Give the meaning of linear equations.
3. Solve for x, (x+4) + (x-5) = 11
4 3
4. Solve x
2
+3x-28=0 using formula method.
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5. A purchased 4 tons of wheat and 3 tons of sugar cost 31000/-. B purchased 3 tons
of wheat and 2 tons of sugar cost 22000/-. Find the cost of wheat and sugar per
ton.
6. Solve for x, (7x+5) - (x-11) = 3(x-25) +35
5 14 7
7. Solve 9x
2
-3x-2=0 using formula method.

2014

1. What are quadratic equations?
2. Define linear equations.
3. Solve for x, 4x
2
+4 =20
4. Solve for x, (2x-7)(3x+1)= (2x-5)(3x+2)
5. The weekly wages of 30 persons consisting of men and women amount to 3800/-
each man receives 160/- and each woman receives 120/- as wages per week. Find
the number of men and women.
6. Form an equation whose roots 2 and -5
7. Solve for x by formula method, 6x+(15/x)= 19
8. The age of the father is 4 times that of his son,5 years ago the father is 7 times that
of his son. Find the present ages.
9. Solve for x , ( 2 ) + ( 3 ) = ( 5 )
x-1 x+4 x+3

10. Solve by elimination method 3x-y=21
x+y=15
11. Solve for x, (7x+5) - (x-11) = 3(x-25) +35
5 14 7

9. Solve for x , ( 1 ) + ( 3 ) = ( 4 )
x+1 x+4 x+3

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Chapter 3 : Matrices and Determinants

2018

1. Evaluate 3 8 6
9 8 2
6 12 2

2. 1 2 2
If A = 2 1 2
2 2 1 find A
2
- 4A-5I=0

3. Find the inverse of 2 -4
-3 5

4. What do you mean by diagonal matrix?
5. Using Cramer’s rule solve 3x-y=6
2x-15=-3y

6. 4 6 -10
Find A and B, A-2B =
6 -4 2
4 -8 2
2A- B =
4 0 2

7. Evaluate 7 6 1
5 3 8
3 2 4

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8. If x 3
= 0 Find X
8 4

9. 9 1 1 5
Find 3A+4B given : A = and B =
4 3 7 12
2017

1. Show that 3 4 7
2 1 3 = -40
-5 -1 2

2. 2 4 4
If A = 4 2 4
4 4 2 find A
2
- 8A-20I=0

3. Find the inverse of 2 -1
3 -2

4. State the meaning of the inverse of the matrix?
5. What is a square matrix? Give example.

6. 2 4 5 1 2 3
A = and B =
6 7 8 1 4 2
Find A+B
7. Using Cramer’s rule solve 3x-y=6
2x-15=-3y

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MESIOM, Rajajinagar MTBDA Smt Divyashree D V
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8. 1 2 3 0 1 2
A = and B =
2 3 4 3 6 5
a) A+B b) A-B c)2A+3B d) Is A+B= B+A

9. Find the cofactors of 5 2 3
3 1 2
1 2 1

10. 4 2 8 4
Show that (AB)’=B’A’ given : A = and B =
6 4 6 2
2016

1. Evaluate 23 6 11
36 5 26
63 13 37

2. Find the inverse of 2 4
6 13

3. State the meaning of the matrix?

4. 0.5 0.5 0.0 0.0 10
A = 0.3 0.0 0.2 0.1 and B = 20 Find AB
1 0.1 0.2 0.5 25
50

5. Using Cramer’s rule solve 10x+5y=125
9x+12y=150
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6. 1 2
Find Adjoint of the matrix: A = Hence find A (Adj A)=l A l. I
3 4
7. Labour cost 20/- per hour per unit, material cost is 5/- and one unit os sub
contracted work costs 10/-. Find the total cost of manufacturing 3000, 2000 and
1000 vehicles of type A, B, and C respectively. Solve by matrix method. Given
that
Vehicles
Labour
(hours)
Material
used(units)
Sub contracted
work(units)
A
40
100
50
B
80
150
80
C
100
250
100

2015

1. Find the inverse of 2 -1
3 -2

2. Mention any four types of matrix.
3. What is diagonal matrix?

4. 0 2 3 7 6 3
A = and B =
2 1 4 1 4 5
a) 2A+4B b) 5B-3A

5. Using Cramer’s rule solve 5x-7y=2
7x-5y=3
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MESIOM, Rajajinagar MTBDA Smt Divyashree D V
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6. Using Cramer’s rule solve 2x+3y-1=0
3x-y+2=0

7. 1 2 1 2 5
Show that (AB)’=B’A’ given : A = 2 4 and B =
5 6 2 4 -6

8. 2 3 0 -3
Find X matrix: A = B= A-X=3B
1 -1 -1 3

2014

1. Find the inverse of 1 -1 1
2 -1 3
-3 -2 4
2. If A = 2 4
Find A
2
.
3 -5

3. What is Scalar matrix? Give example
4. Find the inverse of 3 5
2 1

5. 1 2 -3 3 -1 2
A = 5 0 2 and B = 4 2 5
1 -1 1 2 0 3

Find a) AB b) BA

6. Using Cramer’s rule solve 2x+3y=42
5x-y=20
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Methods and techniques of Business Data Analysis

Methods and techniques of Business Data Analysis

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