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can you be interviewed in the best companies in the world?

Question 1 of 10

1. How to find out how many white cars are in Moscow?

Use the extrapolation method: count the number of white cars that drove along the Moscow Ring Road in half an hour. In a day 48 times for half an hour. Multiply - you get the approximate number of cars.

Find data on the number of registered cars in Moscow. I will assume that white is the most popular color. I will assume that it accounts for 20%. I'll do the count.