A country has a population of 87 million and a Gross National Product (GNP) of 4.3 trillion pounds. (You should use the UK and US versions of million and trillion.)

Which of the following gives the GNP per person in scientific notation correct to 3 s.f.?

4.94 x 10 49400 0.494 x 105 4.943 x 10 4.94 x 10 19