If $A = \left[ {\begin{array}{*{20}{c}} 1&2 \\ 2&0 \end{array}} \right]$ and $B = \left[ {\begin{array}{*{20}{c}} 1&{ - 1} \\ 1&1 \end{array}} \right]$ then $A+B$ = ____________.

• A) $$\left[ {\begin{array}{*{20}{c}} 1&2 \\ 3&4 \end{array}} \right]$$
• B) $$\left[ {\begin{array}{*{20}{c}} 2&{ - 1} \\ 3&1 \end{array}} \right]$$
• C) $$\left[ {\begin{array}{*{20}{c}} 2&1 \\ 3&1 \end{array}} \right]$$
• D) $$\left[ {\begin{array}{*{20}{c}} 2&1 \\ 1&3 \end{array}} \right]$$

Two matrices $A$ and $B$ are said to be confirmable for addition if __________.

• A) they have the same number of columns
• B) they have the same number of rows and columns
• C) they have different dimensions
• D) they have the same number of rows

A photographer wishes to enlarge the picture that is5/2 inches wide by 3 inches to have a new width of 10 inches. What will be the width of enlargement?

• A) 3 inches
• B) 8 inches
• C) 12 inches
• D) 6 inches

${\text{If}}\,P = {\text{Rs}}{\text{.}}\,\,500,T = 4\,{\text{years and }}R = 11\% \,{\text{ then}}\,{\text{the simple interest is }}\_\_\_\_\_\_\_\_\_\_\_\_\_.$

• A) ${\text{Rs}}{\text{. }}200$
• B) ${\text{Rs}}{\text{. }}330$
• C) ${\text{Rs}}{\text{. }}220$
• D) ${\text{Rs}}{\text{. }}320$

On dividing the binomial; x + 1 by a monomial; x we get………

• A) (1/x)+1
• B) 0
• C) 1/x
• D) 2

Let $A$ be an $l×m$ matrix and $B$ be an $m×n$ matrix, then the dimension of the product matrix $AB$ will be equal to __________.

• A) $m×m$
• B) $l×m$
• C) $l×n$
• D) $m×n$

If $A = \left[ {\begin{array}{*{20}{c}} 1&2 \\ 2&0 \end{array}} \right]$ and $B = \left[ {\begin{array}{*{20}{c}} 1&{ - 1} \\ 1&1 \end{array}} \right]$ then $A-B$ will be _________.

• A) $\left[ {\begin{array}{*{20}{c}} 2&{ - 1} \\ 3&1 \end{array}} \right]$
• B) $\left[ {\begin{array}{*{20}{c}} 2&1 \\ 1&3 \end{array}} \right]$
• C) $\left[ {\begin{array}{*{20}{c}} 0&3 \\ 1&{ - 1} \end{array}} \right]$
• D) $\left[ {\begin{array}{*{20}{c}} 1&2 \\ 3&4 \end{array}} \right]$

Annuity is …..

• A) A series of any. payments for a fixed period of time
• B) A series of fixed payment for a fixed period of time
• C) None of these
• D) A series of fixed payment for any period of time

The accumulating factor (AF) used in determining the future value is……

• A) AF = {(1+i)^*(n +1)}/i
• B) AF = {(1+i)^(n) -1}/i
• C) None of these
• D) AF = {(1-i)^(n) +1}/i

$${\text{The }}\,\,{\text{algebraic }}\,\,{\text{expression}},\,\,{x^2} + xy - 6{y^2}{\text{, }}\,\,{\text{is }}\,\,{\text{an }}\,\,{\text{example }}\,\,{\text{of}}\,\,\_\_\_\_\_\_\_\_.$$

• A) $${\text{Both Binomial and polynomial}}$$
• B) $${\text{Binomial}}$$
• C) $${\text{Trinomial}}$$
• D) $${\text{Both trinomial and polynomial}}$$

In word problems, proportions are set up so the corresponding units are either one above the or directly…………………… from one another.

• A) none of these
• B) add
• C) Across
• D) multiply

Two matrices A and B may be added together provided that they have the __________ number of rows and columns.

• A) same
• B) different
• C)
• D)

When a scalar m is multiplied with any matrix then

• A) m is multiplied with all elements of that matrix
• B) None of these
• C) m is multiplied with each column of that matrix
• D) m is multiplied with each row of that matrix.

The rate at which the calculations are made while converting the future value in the present one, is called the…..

• A) Present worth of an annuity
• B) Discount factor rate
• C) Accumulation factor for 'n' payments
• D) Cash flow per period

If $A = \left[ {\begin{array}{*{20}{c}} \begin{gathered} 2 \hfill \\ 0 \hfill \\ \end{gathered} &\begin{gathered} 2 \hfill \\ 0 \hfill \\ \end{gathered} &\begin{gathered} 2 \hfill \\ 0 \hfill \\ \end{gathered} \end{array}} \right]$ and $B = \left[ {\begin{array}{*{20}{c}} 1 \\ 1 \\ 1 \end{array}} \right]$ then the matrix $AB$ wil be ______________.

• A) $$\left[ {\begin{array}{*{20}{c}} 2&2&2 \end{array}} \right]$$
• B) $\left[ {\begin{array}{*{20}{c}} 6 \\ 0 \end{array}} \right]$
• C) $\left[ {\begin{array}{*{20}{c}} \begin{gathered} 2 \hfill \\ 0 \hfill \\ \end{gathered} &\begin{gathered} 2 \hfill \\ 0 \hfill \\ \end{gathered} &\begin{gathered} 2 \hfill \\ 0 \hfill \\ \end{gathered} \end{array}} \right]$
• D) $\left[ 2 \right]$

In the annuities the most common payment frequencies are………….

• A) Monthly (once a month)
• B) All are the feasible
• C) Yearly (once a year),Semi-annually (twice a year)
• D) Quarterly (four times a year)

A matrix with one row is called a ________ matrix

• A) square
• B) column
• C) row
• D) unit

${\rm{If}}\,{\rm{ }}\,X = \left[ {\begin{array}{*{20}{c}} 5\\ { - 3} \end{array}} \right]{\rm{ and }}\,Y = \left[ {\begin{array}{*{20}{c}} 9&{11} \end{array}} \right]{\rm{ then}}\,\;XY = \_\_\_\_\_\_\_\_\_\_.$

• A) $\left[ {\begin{array}{*{20}{c}} {45}\\ { - 33} \end{array}} \right]$
• B) $\left[ {\,78\,} \right]$
• C) $\left[ {\,12\,} \right]$
• D) $\left[ {\begin{array}{*{20}{c}} {14}&8 \end{array}} \right]$

A copy machine copies 68 sheets per minute. At this rate, how many copies can it make in 8.5 minutes

• A) None of these
• B) 561
• C) 578
• D) 518

${\text{If}}\,\frac{8}{9} = \frac{y}{{108}},\,\,{\text{then}}\,y = \_\_\_\_\_\_\_\_\_\_\_\_\_.\,$

• A) $96$
• B) $72$
• C) $144$
• D) $81$