A and B can build a certain wall in 20 days and 30 days respectively. In how many days can they together build two such walls?

Question

A and B can build a certain wall in 20 days and 30 days respectively. In how many days can they together build two such walls?
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Solution 1

To solve this problem, we first need to find out how much of the wall each person can build in one day.

  1. A can build the wall in 20 days, so A can build 1/20 of the wall in one day.
  2. B can build the wall in 30 days, so B can build 1/30 of the wall in one day.

When A and B work together, they Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob

Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solv

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