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The Road Transport Corporation has hired a con- sultancy firm to determine the standard time that should be taken for a journey between two local destinations. The consultant after a detailed study and discussion submitted in his report that the time of journey is proportional to the product of the square root of number of passengers and the distance to be covered. For two distinct trips, the times taken are in the ratio of 2:1 and the distances covered are 80 km and 30 km respectively. How many passengers are there in the first bus, if the second bus has 64 passengers?