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A global perspective on world trade views exports and imports as complementary economic flows; a country's imports affect its exports and exports affect its imports.
If three numbers are in the ratio 5:6:8 and the sum of their squares is 1250, then the product of those numbers is:
A is thrice as efficient as B and C is twice as efficient as B. What is the ratio of number of days taken by A, B and C when they work individually?