I think it’s a (b) because that one makes sence
8 to 16
2 to 4
13 to 26
5 to 10
6 to 12
Answer: 0.6
Explanation: You need to divide 3 by 5 and it will give you the answer of 0.6
To solve this problem we will start by calculating time needed for each of them to fill the pool.
We have formula:
Volume = rate * time
Or
time = volume / rate
Wilma:
time = 9900 / 900
time = 11h
Betty:
time = 9900 / 500
time = 19.8h
Now we substract these two numbers:
time_difference = 19.8 - 11 = 8.8h
Betty needs 8.8 hours more than Wilma to fill the pool.
