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nena types 120 words in 4 minutes how long will it take to type 360 words

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Question:

Nena types 120 words in 4 minutes. How long will it take to type 360 words?

Proportion:

[tex]\tt \Large \green{4 : 120 = n : 360}[/tex]

Solution:

[tex]\tt \large \rightarrow \: \: \frac{4}{120} = \frac{n}{360}[/tex]

[tex]\tt \large \rightarrow \: \: \frac{1}{30} = \frac{n}{360}[/tex]

[tex]\tt \large \rightarrow \: \: 360 = 30n[/tex]

[tex]\tt \large \rightarrow \: \: 30n = 360[/tex]

[tex]\tt \large \rightarrow \: \: \frac{\cancel{30}n}{\cancel{30}} = \frac{360n}{30}[/tex]

[tex]\tt \huge \rightarrow \: \: \purple{n = 12}[/tex]

Final Answer:

[tex]\tt \Large It \: \: will \: \: take \: \: \purple{12 \: \: minutes} \: \: to \\ \tt \Large \: \: type \: \: 360 \: \: words.[/tex]

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