HERE Kalon and his friend Marna own a chimney sweep service company. Working together, they can clean a 20-foot chimney

5

in 17 hours. If it takes Kalon 4 hours to clean a 20-foot chimney by himself, how long does it take Marna to clean the

same size chimney by herself?

Fraction Completed

Rate

(Chimneys per Hour)

1

4

Time

(Hours)

Kalon

Marna

Х

12x

17

O 3 hours

4 hours

O 5 hours

6

O 65 hours

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