Answer:
2 hours, 26 minutes
Step-by-step explanation:
2 boxes of 21 parts = 42 total parts
3 minutes per part = 42 x 3 = 126 minutes
10 minutes per box to package = 10 x 2 = 20 minutes
126 + 20 = 146 minutes
2 hours = 120 minutes
146 - 120 = 26
Final Answer: 2 hours, 26 minutes
It would be 31+t.
Unless there's more to this question.
78 to 338
Adults to children
78:338
78 over 338
Answer:
18 minutes
Step-by-step explanation:
Sophie can peel all potatoes in 45 minutes, in 1 minute she can peel:
Simon can peel all potatoes in 30 minutes, in 1 minute he can peel:
Together, in 1 minute they can peel:
- 1/45+1/30= 2/90+3/90= 5/90= 1/18 of all the potatoes
To peel all the potatoes they need:
- 1 ÷ 1/18= 1 × 18= 18 minutes
So it will take them 18 minutes to peel all the potatoes
