Suraya needs 1.2 kg of watermelon to produce 1.5 litres of watermelon juice. What is the amount of mass needed to produce 5 litres of watermelon juice?

To find the mass of watermelon needed to produce 5 litres of watermelon juice, we can set up a proportion based on the given information:

- 1.2 kg of watermelon produces 1.5 litres of juice.
- We need to find how much mass \( x \) is required to produce 5 litres of juice.

We can write the proportion as:

\[
\frac{1.2 \, \text{kg}}{1.5 \, \text{litres}} = \frac{x \, \text{kg}}{5 \, \text{litres}}
\]

Now, solve for \( x \):

\[
x = \frac{1.2 \, \text{kg} \times 5 \, \text{litres}}{1.5 \, \text{litres}}
\]

\[
x = \frac{6}{1.5}
\]

\[
x = 4 \, \text{kg}
\]

So, Suraya needs **4 kg** of watermelon to produce 5 litres of watermelon juice.

Would you like more details or have any questions? 

Here are 5 related questions:
1. How much watermelon would be needed for 2 litres of juice?
2. If 1 litre of watermelon juice is made, how much mass is used?
3. How much juice can be made from 10 kg of watermelon?
4. What would the ratio of watermelon mass to juice volume be?
5. How would the answer change if it takes 1.3 kg of watermelon to produce 1.5 litres of juice?

**Tip:** When dealing with proportions, always check that the units are consistent before solving.

Find out how much watermelon mass is required to produce 5 litres of watermelon juice by using proportions and ratios. The problem applies a simple proportionality formula based on 1.2 kg for 1.5 litres of juice. Ideal for Grades 6-8 math students.

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