Which of the following numbers cannot be determined from the information given?
Explanation:
Let there be x labour experts. Then, the number of health, population and refugee relocation experts will be 2x each.
Hence, x + 2x + 2x + 2x = 7x = 21
∴ x = 3
That is, the number of Labour, Health, Population and Refugee Relocation experts are 3, 6, 6 and 6 respectively.
Let Australasia have (y + 1) experts. Then the Americas have 2y experts and Africa and Europe have y experts each.
∴ y + 1 + 2y + y + y = 21
∴ y = 4
That is, Australasia, Americas, Africa and Europe have 5, 8, 4 and 4 experts respectively.
As Australasia has sent at least 2 experts on population studies, it has sent 1 expert each for the other three fields.
∴ The Americas and Europe have sent 1 expert each on labour.
∴ Europe has sent 1 expert each on Health, Population Studies and Refugee Relocation.
Number of experts in Refugee Relocation from Africa cannot be found.
Hence, option (d).
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