The figure shows a rectangular tank measuring 48 cm by 20 cm by 38 cm. Jade poured 502 mℓ of water into the tank. Then, she turned on two taps at the same time to fill up the tank with water. Water was flowing from both taps at the same rate. After 4 minutes, both taps were turned off but 2.5 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 tank
= 48 x 20 x 38
= 36480 cm³
= 36480 mℓ

Volume of the remaining space after water was poured in
= 36480 - 502
= 35978 mℓ 

1 ℓ = 1000 mℓ
2.5 ℓ = 2500 mℓ

Volume of water contributed by 2 taps
= 35978 + 2500
= 38478 mℓ

Volume of water contributed by 1 tap
= 38478 ÷ 2 
= 19239 mℓ 

Rate of flow per minute
= 19239 ÷ 4
= 4809.75 mℓ/min

Answer(s): 4809.75 mℓ/min