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Published on: 05/06/2021
QB365 provides detailed and simple solution for every Book back Questions in class 12 Business Maths Subject. It will helps to get more idea about question pattern in every book back questions with solution.
Download Tamil Nadu 12th Standard Business Maths and Statistics question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Business Maths and Statistics Test
1.
E ≡ _______.
1 + Δ
1 - Δ
1 + ∇
1 - ∇
2.
In a degenerate solution number of allocations is _______.
equal to m+n–1
not equal to m+n–1
less than m+n–1
greather than m+n–1
3.
The differential equation of y = mx + c is ______.(m and c are arbitrary constants)
\(\frac { { d }^{ 2 }y }{ d{ x }^{ 2 } } \) = 0
y = x \(\frac { dy }{ dx } \) + c
xdy + ydx = 0
ydx − xdy = 0
4.
5.
A random sample is a sample selected in such a way that every item in the population has an equal chance of being included ______.
Harper
Fisher
Karl Pearson
Dr. Yates
6.
\(\int \frac{\sin 5 x-\sin x}{\cos 3 x} d x\) is _______.
−cos 2x + c
−cos 2x + c
\(-\frac14\)cos2x + c
−4cos2x + c
7.
If Z is a standard normal variate, the proportion of items lying between Z = –0.5 and Z = –3.0 is ________.
0.4987
0.1915
0.3072
0.3098
8.
Demand of products per day for three days are 21, 19, 22 units and their respective probabilities are 0.29, 0.40, 0.35. Profit per unit is 0.50 paisa then expected profits for three days are ________.
21, 19, 22
21.5, 19.5, 22.5
0.29, 0.40, 0.35
3.045, 3.8, 3.85
9.
The given demand and supply function are given by D(x) = 20 − 5x and S(x) = 4x + 8 if they are under perfect competition then the equilibrium demand is ________.
40
\(\frac{41}{2}\)
\(\frac{40}{3}\)
\(\frac{41}{5}\)
10.
The rank of m x n matrix whose elements are unity is ________.
0
1
m
n
1.
(a)
1 + Δ
2.
(c)
less than m+n–1
3.
(a)
\(\frac { { d }^{ 2 }y }{ d{ x }^{ 2 } } \) = 0
4.
(d)
5.
(a)
Harper
6.
(a)
−cos 2x + c
7.
(c)
0.3072
8.
(d)
3.045, 3.8, 3.85
9.
(c)
\(\frac{40}{3}\)
10.
(b)
1
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Tamilnadu Stateboard 12th Standard Subjects
Maths
Chemistry
Physics
Biology
Computer Science
Business Maths and Statistics
Economics
Commerce
Accountancy
History
Computer Applications
Biology
Computer Technology
Computer Applications
Computer Science
Business Maths and Statistics
Commerce
Economics
Maths
Chemistry
Physics
Computer Technology
History
Accountancy
Tamil
English
French
Tamilnadu Stateboard Standards
