Question

A worker is to connect three equal sections of pipe. Each section is 6 2/3 metres in length, as shown below.

6 2/3 m
How long is the connected section of pipe?
19 1/3 metres
20 metres
20 1/16 metres
20 1/6 metres

Answer 1

`6(2)/(3)\implies 6+(2)/(3)\implies \stackrel{\textit{three times that much}}{3\left( 6+(2)/(3) \right)\implies} (3\cdot 6)+3\left( (2)/(3) \right)\implies 18+2\implies \underset{meters}{20}`