Langkah 1: Mencari volume gelas
Dave: Volume gelas = 270ml
270ml : 1.000.000ml = 0,00027ml
Josh: Volume gelas = 400ml
400ml : 1.000.000ml = 0,0004ml
Toni: Volume gelas = 300ml
300ml : 1.000.000ml = 0,0003ml
Langkah 2: Mencari massa air
Dave: 1000kg/m3 x 0,00027ml = 0,27kg
Josh: 1000kg/m3 x 0,0004ml = 0,4kg
Toni: 1000kg/m3 x 0,0003ml = 0,3kg
Langkah 3. Mencari suhu air hangat
Dave: 40C
Josh: 40C
Toni: 38C
Langkah 4: Mencari suhu campuran air
Dave: (100 - 39) = (39 - T2)
61 = (39 - T2)
T2 = 39 - 61
T2 = -22C
Josh: (100 - 40) = (40 - T2)
60 = (40 - T2)
T2 = 40 - 60
T2 = -20C
Toni: (100 - 38) = (38 - T2)
62 = (38 - T2)
T2 = 38 - 62
T2 = -24C