Question

20. Shyla will be driving through South Africa. She has found that theaverage price of gas in Johannesburg is about 19.24 ZAR perliter.a. What is this amount equivalent to in U.S. dollars?b. What is this rate equivalent to in U.S. dollars per gallon?

Answer 1

Given:

The average price of gas Johannesburg is about 19.24 ZAR per liter.

a) The equivalent amount in US dollars is,

`\begin{gathered} 1\text{ USD=}15.91\text{ ZAR} \\ 19.24\text{ ZAR=}(19.24)/(15.91)\text{ USD=1.21 USD} \end{gathered}`

b) The rate in US dollars per gallon is,

`\begin{gathered} 1\text{ litre=}(1)/(3.785)gallon \\ 1\text{ ZAR per litre=0.237704933 USD per gallon} \\ 19.24\text{ ZAR per litre=4.57344 USD per gallon} \end{gathered}`