Respuesta :

lobstershrimpyt

1/2 of an Hour. Since 1/2 of the wall is complete in 1/4 hour, or 15 minutes; another 1/4 or 15 minutes will complete a single wall

Answer:

30 minutes or 1/2 hour

Step-by-step explanation:

1/2 a wall takes 15 mins then full wall will take 30 mins

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