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Jonny can build 3 1/2 lago planes in 60 min. how amny cna he bulid in 40 min

User Mixolution
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1 Answer

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To determine how many Lego planes Jonny can build in 40 minutes, we can set up a ratio based on the given information.

We know that Jonny can build 3 1/2 Lego planes in 60 minutes.

First, we need to convert the mixed fraction 3 1/2 to an improper fraction:

3 1/2 = (2*3 + 1)/2 = 7/2

So, Jonny can build 7/2 Lego planes in 60 minutes.

Now, let's set up a proportion to find out how many Lego planes Jonny can build in 40 minutes:

(7/2 planes) / (60 min) = x planes / 40 min

To solve for x, we can cross-multiply:

(7/2) * 40 = 60 * x

Simplifying the equation:

(7/2) * (2/1) * 20 = 60 * x

7 * 20 = 60 * x

140 = 60 * x

Dividing both sides of the equation by 60:

140 / 60 = x

2.33 = x

Therefore, Jonny can build approximately 2.33 Lego planes in 40 minutes. However, since we cannot build a fraction of a Lego plane, we can round down to the nearest whole number. Thus, Jonny can build 2 Lego planes in 40 minutes.

User BlackLabrador
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