A tank contains 360 liters of liquid. It leaks at 9 liters per day. How many days until empty?

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Multiple Choice

A tank contains 360 liters of liquid. It leaks at 9 liters per day. How many days until empty?

Explanation:
Time to empty is found by dividing the total amount by the daily loss. With 360 liters and a leak of 9 liters per day, the days to empty = 360 ÷ 9 = 40. You can verify by multiplying back: 9 × 40 = 360, which matches the starting amount. So 40 days is the correct duration. For reference, 36 days would drain only 324 liters, 44 days would require 396 liters, and 50 days would require 450 liters, none of which match the initial 360 liters.

Time to empty is found by dividing the total amount by the daily loss. With 360 liters and a leak of 9 liters per day, the days to empty = 360 ÷ 9 = 40. You can verify by multiplying back: 9 × 40 = 360, which matches the starting amount. So 40 days is the correct duration. For reference, 36 days would drain only 324 liters, 44 days would require 396 liters, and 50 days would require 450 liters, none of which match the initial 360 liters.

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