A clock each time it increased 20 minutes , it stopped for 10min. How long will it take the minutes arrow to do 2 full rounds ?
+9519 It will take 30 minutes to turn 1/3 of a round,
So it will take 6(30) = 180 minutes to turn 6(1/3) = 2 rounds.
+26367 A clock each time it increased 20 minutes , it stopped for 10min.
How long will it take the minutes arrow to do 2 full rounds ?
\(\begin{array}{|rcll|} \hline \text{Time} &=& {\color{red}20}\ \text{min.} + 10\ \text{min.} +{\color{red}20}\ \text{min.} + 10\ \text{min.} + {\color{red}20}\ \text{min.} \quad | \quad \text{minutes arrow first round } 60\ \text{min.}\\ && + 10\ \text{min.}+{\color{red}20}\ \text{min.} + 10\ \text{min.} + {\color{red}20}\ \text{min.} + 10\ \text{min.}+ {\color{red}20}\ \text{min.} \quad | \quad \text{minutes arrow second round } 120\ \text{min.}\\ \text{Time} &=& 170\ \text{min.} \\ \hline \end{array}\)
