Question

The mean length of 7 sticks is 1.02 m. What is the total length of the sticks?

Answer 1

The Solution:

Given:

$\begin{gathered} mean=1.02m \\ number=7\text{ sticks} \end{gathered}$

By formula,

$mean=\frac{total}{number}$$\begin{gathered} 1.02=\frac{total}{7} \\ \\ Cross\text{ multiply to get:} \\ \\ total=7\times1.02=7.14m \end{gathered}$

Therefore, the correct answer is 7.14m