SOLUTION: 42. Tyrin can paint a house in 4 days. Tahjai can paint the same house in 5 days. How many days will it take to paint the house if they work together?

Question 79958: 42. Tyrin can paint a house in 4 days. Tahjai can paint the same house in 5 days. How many days will it take to paint the house if they work together?

Answer by vertciel(183) (Show Source): You can put this solution on YOUR website!
Hello,
If Tyrin can paint a house in 4 days, he/she will have painted 1/4 of the house in 1 day.
If Tahjai can paint a house in 5 days, he/she will have painted 1/5 of the house in 1 day.
Add their rates of work together and you get the number of days needed for them to paint the house together:
1/4 + 1/5 = answer
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