<prompt> Which one of the following formulae is used for computing the aedes aegypti index at international airpos and sea po-Number of bits of aedes aegyptiTotal number of man hour x 100Number of houses positive for Aedes aegypti breedingTotal number of housesx100Number of containers positive for Aedes aegypti breedingTotal number of containersx100Number of containers positive for Aedes aegypti breedingTotal number of housesx100  <response>: Aedes aegypti index is defined as the ratio expressed as a percentage between the number of houses in a limited well-defined area on the premises of which actual breeding of Aedes aegypti are found and the total number of houses examined in that area Parks Textbook of Preventive and Social Medicine, 25th Edition, Pg 