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One day, a person went to a horse racing area. Instead of counting the number of humans an horses, he counted 74 heads and 196 legs. How many humans and horses were there? one man is on the ground floor there are 3switches of 3bulbs which are on the 1st floor which can't be seen from the ground floor and the can go only once to the first floor so how will he find which bulb is related to which switch