Given:
An elephant drinks 49 gallons of water per day.
A rhinoceros drinks 21 gallons of water per day.
To find:
The total amount of water the animals will drink in 8 days.
Solution:
In each day,
Elephant drinks = 49 gallons
Rhinoceros drinks = 21 gallons
Total amount of water they will drink each day is
[tex]49+21=70[/tex]
They will drink 70 gallons in each days.
So, total amount of water the animals will drink in 8 days is
[tex]8\times 70=560[/tex]
Therefore, they will drink 560 gallons of water in 8 days.