Daily Brain Teasers for Thursday, 18 October 2018
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MAGIC SQUARE: Calculate A-B*CThe aim is to place the some numbers from the list (16, 17, 18, 19, 24, 26, 40, 41, 47, 48, 79) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A-B*C.
Ron, an elderly man in Australia, had owned a large farm for several years. He had a large pond at the back.
It was properly shaped for swimming, so he fixed it up nice with picnic tables, horseshoe courts, and some orange and lime trees.
One evening the old farmer decided to go down to the pond, as he hadn't been there for a while, and look it over.
He grabbed a five-gallon bucket to bring back some fruit. As he neared the pond, he heard voices shouting and laughing with glee.
As he came closer, he saw it was a bunch of young women skinny-dipping in his pond. He made the women aware of his presence, and they all went to the deep end.
One of the women shouted to him, "We're not coming out until you leave!"
Ron frowned, "I didn't come down here to watch you ladies swim naked or make you get out of the pond naked."
Holding the bucket up Ron said, "I'm here to feed the alligator."
Flotation process patentIn 1898, English brothers Alexander and Francis El applied for a British patent (No. 21,948) for their flotation process to separate valuable ore, such as copper, from the gangue (worthless rock) with which it is associated when mined. It was the first practical equipment to extract metals from low-content ore. Pulverized ore is mixed with water and brought into contact with thick oil. The oil entraps the metallic constituents, which are afterwards separated, and gangue passed away with the water. Today, flotation methods remain vital in the mining industry, processing millions of tons of ores each year.