Answer:
50 minutes
Step-by-step explanation:
it takes 80 minutes for 5 pipes
so for 1 pipe it will take 5x80=400min
and for 8 pipes it will take 400/8=50min
Answer:
I think it 85 because it looks the same as 4
Step-by-step explanation:
Hello!
To solve this you have to find what the biggest number that each number can be divided by
You can do this by listing the multiples of the smallest number
The multiples of 6 are
1, 2, 3, 6
Now you look and see what the biggest number 18 and 15 can be divided by evenly
15 can't be divided by 6 so it is not 6
All three numbers can be divided by 3 so this is the answer
The answer is 3
Hope this helps!