Final answer:
The average price of gas in Johannesburg of 0.82 ZAR per liter is equivalent to about $0.0533 per liter and $0.20 per gallon.
Step-by-step explanation:
The average price of gas in Johannesburg is about 0.82 South African rands per liter. Given the exchange rate of 1 USD ≈ 15.38 South African rands (ZAR), let's calculate the equivalent amount in USD.
Equivalent amount in USD
To find the equivalent amount in USD, divide the price in ZAR by the exchange rate:
0.82 ZAR ÷ 15.38 ZAR/USD = 0.0533 USD
Equivalent rate in USD per gallon
There are approximately 3.78541 liters in a US gallon. Multiplying the price per liter in USD by the number of liters in a gallon gives:
0.0533 USD/L × 3.78541 L/gal = 0.2018 USD/gal, which can be rounded to $0.20 per gallon.