Question

If a bar of length 1 unit represents 10 objects, what would be the length of a bar to represent 34 objects?

• A. 3.4 units
• B. 34 units
• C. 0.34 units
• D. 3.04 units

Answer 1

The correct option is A 3.4 units

$\begin{array}{c}baroflength\to 1unit\end{array}\to 10objects$

$\begin{array}{c}baroflength\to 2units\end{array}\to 20objects$

$\begin{array}{c}baroflength\to 3units\end{array}\to 30objects$

Now,

$10$ objects = $1$ unit length

$1$ object = $\frac{1}{10}$ unit length

$\to$ 4 objects = $\frac{1}{10}\times 4$

= $\frac{4}{10}$ units = $0.4$ unit length

$\therefore$ 34 objects = $3+0.4=3.4units$