MATH PUZZLE: Can you replace...
[3992] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 129 - The first user who solved this task is Thinh Ddh
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 129
The first user who solved this task is Thinh Ddh.
#brainteasers #math #riddles
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Welfare Office

A woman went down to the Welfare Office to get aid.

The office worker asked her, "How many children do you have?"

"Ten," she replied.

"What are their names?" he asked.

"David, David, David, David, David, David, David, David, David and David," she answered.

"They're all named David?" he asked "What if you want them to come in from playing outside?"

"Oh, that's easy," she said. "I just call 'David,' and they all come running in."

"And, if you want them to come to the table for dinner?"

"I just say, 'David, come eat your dinner'," she answered.

"But what if you just want ONE of them to do something?" he asked.

"Oh, that's easy," she said. "I just use their last name!"

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Sir Robert Abbott Hadfield

Born 28 Nov 1858; died 30 Sep 1940 at age 81.English metallurgist (Baronet) who developed manganese steel, an alloy of exceptional durability that found uses in the construction of railroad rails and rock-crushing machinery. Hadfield discovered manganese steel in 1882. It was hardened by quenching it in water from a temperature of a thousand degrees centigrade. The hard steel was to be used in the manufacture of tram wheels. He patented his work in 1883-4 but continued to carry out further experiments before publicising his findings in 1888, which were supported by a lecture tour. The first World War provided new markets for manganese steel: spur armour plate and shells, tank treads and soldier's helmets. By 1919, Hadfields Steel Foundry Co. Ltd. were Sheffield's biggest employers.[DSB and EB give birth date as 28 Nov 1858. Current Bio. gives 29 Nov 1858.]
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