Ms. Daly could knit 9 sweaters in 108 hours. How long will it take her to knit 4 sweaters? (108 hours = 4.5 days)

Answer 1

H/4 = 108/9 = 12

H= 4x12 = 48 hours = 2 days

or

4 is 4/9 of 108

4/9)(4.5 days) = 4(4.5/9) - 4/2 = 2 days = 48 hours