Level 2
Water is pumped into a rectangular tank at a rate of 16.5 ℓ per minute. The tank measures 110 cm by 90 cm by 50 cm. How long does it take to fill the tank? Express your answer in min.
Level 2
Clara and Dan saved a fixed amount of money every day. Dan saved $1.50 more than Clara each day. After several days, Dan saved $40 and Clara saved $25. Find the amount that Dan saved every day.