Sam and Tina fill petrol in their bikes. Tina bought 2 l 500 ml of petrol. Sam bought 2 l 800 ml more petrol than Tina. How much petrol did Sam buy?
Given: Tina bought 2 l 500 ml of petrol. Sam bought 2 l 800 ml more than Tina.
Formula: Sam's petrol = Tina's petrol + 2 l 800 ml
Substitution: Sam's petrol = 2 l 500 ml + 2 l 800 ml
Calculation: Add litres: 2 + 2 = 4 l Add millilitres: 500 + 800 = 1,300 ml = 1 l 300 ml Total = 4 l + 1 l 300 ml = 5 l 300 ml
Answer: Sam bought 5 l 300 ml of petrol.
Explanation
The chapter explains addition of capacities. Tina bought 2 l 500 ml. Sam bought 2 l 800 ml MORE than Tina. Sam's petrol = Tina's petrol + 2 l 800 ml = 2 l 500 ml + 2 l 800 ml. Add l: 2 + 2 = 4 l. Add ml: 500 + 800 = 1,300 ml = 1 l 300 ml. Total = 4 l + 1 l 300 ml = 5 l 300 ml.
Solution Steps
Tina bought 2 l 500 ml of petrol. Sam bought 2 l 800 ml more than Tina.
Sam's petrol = Tina's petrol + 2 l 800 ml
Sam's petrol = 2 l 500 ml + 2 l 800 ml
Add litres: 2 + 2 = 4 l
Add millilitres: 500 + 800 = 1,300 ml = 1 l 300 ml
Total = 4 l + 1 l 300 ml = 5 l 300 ml
Sam bought 5 l 300 ml of petrol.