A girl can do her homework in 1.5 hours. How long would It take her twin brother to do the same homework alone if together they do it in 40 minutes?

Orlin Georgiev asked Feb 19, 2023

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18 votes

Orlin Georgiev asked Feb 19, 2023

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8 votes

Answer:

72 minutes

Explanation:

in minutes,

1/90 + 1/x = 1/40

x = 72

Sdfx answered Feb 25, 2023

by Sdfx

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