The figure shows Tap T, Tap U and an empty tank with a capacity of 82.4 litres. Water flows Tap T at 1.1 litres per minute and from Tap U at 1.9 litres per minute. Tap T was turned on first. Tap U was turned on 4 minutes later. The taps were turned off at the same time when the tank was completely filled without overflowing. How much water flowed from Tap T?