Amanda can attach 18 rivers a minute. It takes 32 rivers to attach a rim. How many hours will it take to attach 2000 rims?

Question

Amanda can attach 18 rivets a minute. It takes 32 rivets to attach a rim. How many hours to attach 2000 rims?

Answer 1

2000 rims x 32 rivets/rim = 64000 rivets

 

64000 rivets ⁄ 18 rivets/min = 3555.55 min = 59.26 hours

Answer 2

2000 rims x 32 rivets/rim x 1 min/18 rivets x 1 hour/60 min = 59.26 hours