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b) How much would 15 liters of petrol cost at the same station?

Give your answer in pounds [tex](£)[/tex].


Sagot :

Certainly! Let's solve the problem step-by-step.

1. Understanding the Given Values:
- The cost of petrol is given as £2.5 per litre.
- We need to find out how much 15 litres of petrol would cost at this rate.

2. Setting Up the Problem:
- We need to calculate the total cost by multiplying the cost per litre by the number of litres.

3. Mathematical Calculation:
- Cost per litre of petrol: £2.5
- Amount of petrol: 15 litres
- To find the total cost, we will multiply these two values.
- Total Cost = Cost per litre Amount in litres
- Total Cost = £2.5
15

4. Calculation:
- Total Cost = £37.5

5. Conclusion:
- The cost for 15 litres of petrol at the given rate is £37.5.

Thus, 15 litres of petrol would cost £37.5 at the same station.