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) $81$

The property of a (an) ____________ is that the product of the means is equal to the product of the extremes.

• A) proportion
• B) multiplicative
• C) ratio
• D) additive

What is the order of the matrix $A = \left[ {\begin{array}{*{20}{c}} \begin{gathered} 1 \hfill \\ 3 \hfill \\ \end{gathered} &\begin{gathered} 2 \hfill \\ 4 \hfill \\ \end{gathered} &\begin{gathered} 1 \hfill \\ 0 \hfill \\ \end{gathered} \end{array}} \right]$?

• A) $3×2$
• B) $2×3$
• C) $2×2$
• D) $3×3$

Consider W/X= Y/Z, the values in the X and Y positions are called the ___________ of the proportion.

• A) means
• B) extremes
• C)
• D)

A proportion is a comparison of…………………….

• A) None of these.
• B) Two ratios
• C) Three quantities
• D) Two quantities

What is percent of change 32 to 24?

• A) 14%
• B) None of them
• C) 25%
• D) 33%

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

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

40% of what is 8?

• A) 120
• B) 5
• C) 3.2
• D) 20

The value of the expression 2^x –x^2 = 2^x – x satisfied by………

• A) x = 1
• B) None of these
• C) Both x=0 and x=1
• D) x = 0

If we want to build retirement income or child’s education etc. then which of the following term‘ll be of the best use......

• A) Annuities
• B) Compound interest
• C) Provident fund
• D) Simple interest

Matrix multiplication is only possible if the row matrix and the column matrix have the __________ number of elements.

• A) same
• B) different
• C)
• D)

If x = 341.25 + 0.025 x then the value of x is _____________.

• A) 350
• B) 150
• C) 450
• D) 250