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3 and 4 .Determinants and Matrices
easy
Consider the following information regarding the number of men and women workers in three factories $I,\,II$ and $III$
| Men workers |
Women workers |
|
| $I$ | $30$ | $25$ |
| $II$ | $25$ | $31$ |
| $III$ | $27$ | $26$ |
Represent the above information in the form of a $3 \times 2$ matrix. What does the entry in the third row and second column represent?
Option A
Option B
Option C
Option D
Solution
Solution The information is represented in the form of a $3 \times 2$ matrix as follows:
$A=\left[\begin{array}{ll}
30 & 25 \\
25 & 31 \\
27 & 26
\end{array}\right]$
The entry in the third row and second column represents the number of women workers in factory $III$.
Standard 12
Mathematics
