math

if patrick can paint a wall in 40 minutes, what part of it can he paint in 1/2 hour?

1/4
1/2
2/3
3/4
4/5

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  1. 1 wall is 40 minutes.
    1/2 hour is equal to 30 minutes

    Set up a ratio

    1 wall/ 40 minutes = x wall/ 30 minutes

    x wall= (1*30)/40

    wall = 3/4

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