An expression 2x is called….

• A) Polynomial
• B) Trinomial
• C) Monomial
• D) Binomial

To multiply a matrix with a real number, we multiply __________ with this number.

• A) only one row
• B) each element
• C) only one column
• D) only diagonal elements

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

• A) the number of columns in matrix $A$ is equal to the number of columns in matrix $B$
• B) the number of rows in matrix $A$ is equal to the number of rows in matrix $B$
• C) the number of rows in matrix $A$ is equal to the number of columns in matrix $B$
• D) the number of columns in matrix $A$ is equal to the number of rows in matrix $B$

What is the order of the matrix $A = \left[ {\begin{array}{*{20}{c}} 1&6 \end{array}} \right]$?

• A) $1×1$
• B) $2×1$
• C) $1×2$
• D) $2×2$

If $I$ is an identity matrix of order $2×2$ and $A$ is any other real matrix of order $2×2$, then the product of matrix $A$ and $I$ will be equal to __________.

• A) $AI = {A^2}$
• B) $AI = I$
• C) $A{A^{ - 1}} = O$
• D) $AI = A$

If A and B are 2 x 3, then A + B is

• A) 2 x 3
• B) not possible
• C) 3 x 3
• D) 2 x 2

Which of the following is NOT an algebraic operation?

• A) *
• B) +
• C) U
• D) -

If discount factor is 13.9504 and discounted value is 14229.408 then annuity is….

• A) 1120
• B) 1020
• C) 1475
• D) 1220

The multiplicative inverse of $1/100$ is equal to _____________.

• A) $25$
• B) $75$
• C) $50$
• D) $100$

The ratio of boys to girls in the Drama club is 4:7. What is the ratio of girls to the total number of students in the Drama Club?

• A) 7/11
• B) 7/4
• C) 4/7
• D) 4/11

If ${A^{ - 1}}$ is the multiplicative inverse of $A$ then their product will be equal to _________.

• A) $A{A^{ - 1}} = A$
• B) $A{A^{ - 1}} = I$
• C) $A{A^{ - 1}} = {A^{ - 1}}$
• D) $A{A^{ - 1}} = O$

The matrix $A = \left[ {\begin{array}{*{20}{c}} 1 \\ 5 \\ {10} \end{array}} \right]$ is a _________ matrix.

• A) null
• B) column
• C) singular
• D) row

A matrix with one column is called a _________ matrix

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

Accumulated value = ----------- * Accumulation factor for n payments

• A) Discounted or present worth of an annuity
• B) Payment per period
• C) Amount of annuity
• D) Interest rate per conversion period

Two matrices are equal if they are of the _________ order and all corresponding entries are __________.

• A) same, not equal
• B) different, equal
• C) same, equal
• D) different, not equal

$$\begin{array}{l} A\,\,\,{\rm{chartered bank is increasing the interest rate on its loans from 7\% to 9\% }} \\\ {\rm{What will be the percent increase in the interest rate on a given balance?}} \\\ \end{array}$$

• A) $$- 22.2\%$$
• B) $$22.2\%$$
• C) $$None\,\,of\,\,these$$
• D) $$28.57\%$$

The matrix $A = \left[ {\begin{array}{*{20}{c}} 1&2&3 \end{array}} \right]$ is a _________ matrix.

• A) column
• B) row
• C) singular
• D) null

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

• A) extremes
• B) means
• C)
• D)

${\rm{If}}\,{\rm{ }}A = \left[ {\begin{array}{*{20}{c}} 2\\ 3\\ 0 \end{array}} \right]{\rm{ and }}B = \left[ {\begin{array}{*{20}{c}} { - 1}&0&6 \end{array}} \right]{\rm{ then}}\;AB = \_\_\_\_\_\_\_\_\_\_.$

• A) $\left[ {\,7\,} \right]$
• B) $\left[ {\begin{array}{*{20}{c}} 1\\ 3\\ 6 \end{array}} \right]$
• C) $\left[ { - 2 } \right]$
• D) $\left[ {\begin{array}{*{20}{c}} 1&3&6 \end{array}} \right]$

$$\begin{array}{l} Dimension\,\,of\,\,matrix\,\,A\,\,is\,\,3*3\,\,\,and\,\,Dimension\,\,of\,\,matrix\,\,B\,\,is\,\,3*2\,\,\,. \\\ Find\,\,the\,\,Dimension\,\,of\,\,AB\,\,\, = \,\,\,\,\, - - - - - . \\\ \end{array}$$

• A) $$3*3$$
• B) $$None\,\,of\,\,these$$
• C) $$2*2$$
• D) $$3*2$$