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Cadets are marching in a parade. There are 5 cadets in a row. What is the rule which gives the number of cadets, given the number of rows? (Use $ n $ for the number of rows.)
Given:
Cadets are marching in a parade. There are 5 cadets in a row.
To do:
We have to find the rule which gives the number of cadets, given the number of rows.
Solution:
Let the number of rows be $n$.
Number of cadets in a row $=5$.
Total number of cadets $=$ Number of cadets in a row $\times$ Number of rows.
$=5\times n$
$=5n$.
Therefore, the required rule for number of cadets is $5n$.
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