A) 28
B) 30
C) 32
D) 36
E) 40
The correct answer is C. I tried many ways, but I don't really get the right answer.
Maybe someone can help
![Smile :-)](./images/smilies/smile.png)
When posting questions, please use the spoiler function to hide the correct answer. This will allow others to attempt the question without seeing the final answer.mhoi wrote:Bea can paint a house three times faster than Alice can paint a house. If, working together, it takes Alice and Bea 24 hours to paint a house, then how many hours will it take Bea to paint a house alone?
A) 28
B) 30
C) 32
D) 36
E) 40
Since Bea paints 3 times faster than Alice, for every unit Alice paints, Bea paints 3 units.mhoi wrote:Bea can paint a house three times faster than Alice can paint a house. If, working together, it takes Alice and Bea 24 hours to paint a house, then how many hours will it take Bea to paint a house alone?
A) 28
B) 30
C) 32
D) 36
E) 40
Here's another approach:mhoi wrote:Bea can paint a house three times faster than Alice can paint a house. If, working together, it takes Alice and Bea 24 hours to paint a house, then how many hours will it take Bea to paint a house alone?
A) 28
B) 30
C) 32
D) 36
E) 40