The figure shows a rectangular container measuring 28 cm by 11 cm by 44 cm. Shannon poured 772 mℓ of water into the container. Then, she turned on two taps at the same time to fill up the container with water. Water was flowing from both taps at the same rate. After 15 minutes, both taps were turned off but 1.8 ℓ of water had overflowed and was collected in a tray. Find the rate of the flow of water of each tap in millilitres per minute.
Volume of the container
= 28 x 11 x 44
= 13552 cm³
= 13552 mℓ

Volume of the remaining space after water was poured in
= 13552 - 772
= 12780 mℓ 

1 ℓ = 1000 mℓ
1.8 ℓ = 1800 mℓ

Volume of water contributed by 2 taps
= 12780 + 1800
= 14580 mℓ

Volume of water contributed by 1 tap
= 14580 ÷ 2 
= 7290 mℓ 

Rate of flow per minute
= 7290 ÷ 15
= 486 mℓ/min

Answer(s): 486 mℓ/min