" /> -->

12th Standard Business Maths English Medium Free Online Test Book Back 1 Mark Questions with Answer Key

12th Standard EM

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Business Maths

Time : 00:10:00 Hrs
Total Marks : 10

    Answer all the questions

    10 x 1 = 10
  1. The rank of m×n matrix whose elements are unity is

    (a)

    0

    (b)

    1

    (c)

    m

    (d)

    n

  2. ഽ2xdx is

    (a)

    2x log 2 + c

    (b)

    2x + c

    (c)

    \(\frac { 2^{ x } }{ log2 } +c\)

    (d)

    \(\frac { log2 }{ { 2 }^{ x } } +c\)

  3. Area bounded by the curve y = e−2x between the limits 0 ≤ x ≤ ∞ is

    (a)

    1 sq.units

    (b)

    \(\frac{1}{2}\) sq.unit

    (c)

    5 sq.units

    (d)

    2 sq.units

  4. The order and degree of the differential equation \(\sqrt { \frac { { d }^{ 2 }y }{ { dx }^{ 2 } } } =\sqrt { \frac { dy }{ dx } +5 } \) are respectively

    (a)

    2 and 3

    (b)

    3 and 2

    (c)

    2 and 1

    (d)

    2 and 2

  5. Δf(x) =

    (a)

    f(x+ h)

    (b)

    f(x) − f(x+h)

    (c)

    f(x + h) − f(x)

    (d)

    f (x) − f(x−h)

  6. Demand of products per day for three days are 21, 19, 22 units and their respective probabilities are 0⋅ 29, 0⋅ 40, 0⋅ 35. Pofit per unit is 0⋅ 50 paisa then expected profits for three days are

    (a)

    21, 19, 22

    (b)

    21.5, 19.5, 22.5

    (c)

    0.29, 0.40, 0.35

    (d)

    3.045, 3.8, 3.85

  7. If X ~N(9,81) the standard normal variate Z will be

    (a)

    \(Z=\frac { X- 81 }{ 9 } \)

    (b)

    \(Z=\frac { X-9 }{ 81 } \)

    (c)

    \(Z=\frac { X-9 }{ 9 } \)

    (d)

    \(Z=\frac { 9-X }{ 9 } \)

  8. A __________ of statistical individuals in a population is called a sample.

    (a)

    Infinite set

    (b)

    finite subset

    (c)

    finite set

    (d)

    entire set

  9. A time series consists of

    (a)

    Five components

    (b)

    Four components

    (c)

    Three components

    (d)

    Two components

  10. In a non – degenerate solution number of allocations is

    (a)

    Equal to m+n–1

    (b)

    Equal to m+n+1

    (c)

    Not equal to m+n–1

    (d)

    Not equal to m+n+1

*****************************************

TN 12th Standard EM Business Maths free Online practice tests

Reviews & Comments about 12th Standard Business Maths English Medium Free Online Test Book Back 1 Mark Questions with Answer Key

Write your Comment