A tank held 240 liters of water. First, three eighths of all the water was used, then one third of the remainder. How many liters remained?
Show hints
- Take the second fraction from the remainder, not the start.
- Calculate 240 − 90 − 50.
Show the answer and solution
Answer: 100
First, 240 × 3 ÷ 8 = 90 liters was used, leaving 150. Then 150 ÷ 3 = 50 was used, leaving 100 liters.