Multiple choice

The price for crude oil produced by the Organisation of Petroleum Exporting Countries (OPEC) is expressed on “One barrel”. How may litres make one barrel?

  1. 160 litres

  2. 161 litres

  3. 158 litres

  4. 159 litres
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An oil barrel, specifically the standard unit used by OPEC and the petroleum industry, is defined as 42 US gallons, which is approximately 159 litres.

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