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sara ghorbani

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MATH PUZZLE: Can you replace the question mark with a number?
Look at the picture, determine the pattern and replace the question mark with a number.
MATH PUZZLE: Can you replace the question mark with a number?

Henry Whitehead

Born 11 Nov 1904; died 8 May 1960 at age 55. John Henry Constantine Whitehead was a British mathematician who greatly influenced the development of homotopy theory (a special kind of mapping of topological spaces). Whitehead's work in differential geometry culminated in the paper “On the Covering of a Complete Space by the Geodesics Through a Point” (1935), containing pioneering contributions to this area of mathematics. He always retained his interest in geometry but soon focused on topology. He made substantial contributions to combinatorial homotopy and Stiefel manifolds and set up a school of topology at Oxford.

Fighting for Business

The shopkeeper was dismayed when a brand new business much like his own opened up next door and erected a huge sign which read BEST DEALS.
He was horrified when another competitor opened up on his right, and announced its arrival with an even larger sign, reading LOWEST PRICES.
The shopkeeper was panicked, until he got an idea. He put the biggest sign of all over his own shop-it read…
Main entrance.

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