Answer:
900 liters
Step-by-step explanation:
If each horse drinks 45,000 milliliters of water each day, then in 1 day they would have drank
= 45,000 milliliters × 4 = 180,000 milliliters
In 5 days, the horses would have drank;
= 180,000 milliliters × 5
= 900,000 milliliters
1000 milliliters = 1 liter
900,000 milliliters = 900,000/1000 liters
= 900 liters
In 5 days, the horses would have drank 900 liters of water.