A group of college students is volunteering for Homes for the Community during their spring break. They are putting the finishing touches on a house they built. Working alone, Wade can paint a certain room in 3 hours. Rhonda can paint the same room in 6 hours. How long will it take them working together to paint the room? Round your answer to the nearest hundredth if necessary.

I already did this question. I guessed 4.5 and was wrong. Can anybody give me the steps to solve this equation? And give me the numbered steps to the answer? Also, the answer is 2.

Question

A group of college students is volunteering for Homes for the Community during their spring break. They are putting the finishing touches on a house they built. Working alone, Wade can paint a certain room in 3 hours. Rhonda can paint the same room in 6 hours. How long will it take them working together to paint the room? Round your answer to the nearest hundredth if necessary.

I already did this question. I guessed 4.5 and was wrong. Can anybody give me the steps to solve this equation? And give me the numbered steps to the answer? Also, the answer is 2.