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

139,812 views

18 votes

Orlin Georgiev asked Feb 19, 2023

3.3k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

8 votes

Answer:

72 minutes

Explanation:

in minutes,

1/90 + 1/x = 1/40

x = 72

Sdfx answered Feb 25, 2023

by Sdfx

2.8k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers