Brent oil. In 2015 one barrel of Brent oil traded for GBP42.34 and South Africa rands (ZAR) 789. What is the exchange rate between the pound and the rand? How would the exchange rate change if the oil price jumps to GBP49 per barrel (assume no change in the price in South Africa)? The implied exchange rate when the price is GBP42.34 per barrel is ZAR /GBP. /GBP (Round to two decimal places.) The implied exchange rate when the price is GBP49 per barrel is ZAR/GBP. (Round to two decimal places.)