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The weight of the water container is 2.48 kg. If we pour 75% of the water, the container with water weighs 0.98 kg. Find the weight of the empty container. How much water was originally in the container?

Correct answer:

x =  0.48 kg
y =  2 kg

Step-by-step explanation:


x+y = 2.48
x + 0.25y = 0.98

x+y = 2.48
x + 0.25·y = 0.98

x+y = 2.48
x+0.25y = 0.98

Row 2 - Row 1 → Row 2
x+y = 2.48
-0.75y = -1.5


y = -1.5/-0.75 = 2
x = 2.48-y = 2.48-2 = 0.48

x = 12/25 = 0.48
y = 2

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