Answer:
9 hours
Step-by-step explanation:
given Ruby takes 20 mins to make one stick , then to make 27 sticks will take 27 times as long, that is
27 × 20 mins = 540 mins = 540 ÷ 60 = 9 hours ( 60 mins in 1 hour )
Answer:
540
Step-by-step explanation:
Since ruby takes 1 minute to make 1 stick.You just have multiple 27 sticks and 20 minute
20×27=540
