MAGIC SQUARE: Calculate A-B+C
[3657] MAGIC SQUARE: Calculate A-B+C - The aim is to place the some numbers from the list (2, 3, 5, 7, 8, 10, 18, 19, 20, 22, 57, 85, 87) 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. - #brainteasers #math #magicsquare - Correct Answers: 28 - The first user who solved this task is Roxana zavari
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MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (2, 3, 5, 7, 8, 10, 18, 19, 20, 22, 57, 85, 87) 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.
Correct answers: 28
The first user who solved this task is Roxana zavari.
#brainteasers #math #magicsquare
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Chain Saw

Bubba decided it was time to purchase a new saw to help clear his heavily timbered property. A salesman showed him the latest model chain saw and assured him that he could easily cut three or four cords of wood per day with it. But the first day, Bubba barely cut one cord of wood. The second morning he arose an hour earlier and managed to cut a little over one cord. The third day he got up even earlier but only managed to achieve a total of 1 ½ cords of wood.
Bubba returned the saw to the store the next day and explained the situation.
"Well", said the salesman, "let’s see what’s the matter." He then pulled the cable and the chain saw sprang into action.
Leaping back, Bubba shouted, "What the heck is that noise?"  

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Jerzy Neyman

Born 16 Apr 1894; died 5 Aug 1981 at age 87.Russian-American mathematician who was one of the principal architects of modern theoretical statistics. His papers on hypothesis testing (1928-33) helped establish the subject. During 1934-38, he gave a theory of confidence intervals (important in the analysis of data); extended statistical theory to contagious distributions, (for interpretation of biological data); wrote on sampling stratified populations (which led to such applications as the Gallup Poll); and developed the model for randomised experiments (widely relevant across the fields of science, including agriculture, biology, medicine, and physical sciences). His later research applied statistics to meteorology and medicine. In 1968 he was awarded the prestigious National Medal of Science.«
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