Please help thanks

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# Question

# Answer

**Step 1: Write down the draining ratio for both scenarios**

Scenario 1:

X : Y

104 : 34

3 : 1

Scenario 2:

X : Y

34 : 104

1 : 3

**Step 2: Make the ratio of Tank Y the same since it is a constant (completely drained in both scenarios)**

Scenario 1:

X : Y

104 : 34

3 : 1

9 : 3

Scenario 2:

X : Y

34 : 104

1 : 3

**Step 3: Identify that the difference in units for Tank X represents the difference in water left in Tank X for both scenarios**

9 units – 1 unit = (1176 – 420)

8 units = 756

**Step 4: Solve for both Tanks**

1 unit = 94.5

3 units = 94.5 x 3 = 283.5 litres (water in Tank Y at first since it is completely drained)

From scenario 2:

94.5 + 1176 = 1270.5 litres (water in Tank X at first)

**Step 5: Find difference in volume between both tanks**

Difference in water volume:

1270.5 – 283.5 = **987 litres**

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