Replace the question mark with a number
[4257] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 157 - The first user who solved this task is H Tav
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 157
The first user who solved this task is H Tav.
#brainteasers #math #riddles
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The football coach walked into...

The football coach walked into the locker room before a game, looked over to his star player and said, "I'm not supposed to let you play since you failed math, but we need you in there. So, what I have to do is ask you a math question, and if you get it right, you can play."
The player agreed, and the coach looked into his eyes intently and asks, "Okay, now concentrate hard and tell me the answer to this. What is two plus two?"
The player thought for a moment and then he answered, "4?"
"Did you say 4?" the coach exclaimed, excited that he got it right.
At that, all the other players on the team began screaming, "Come on coach, give him another chance!"
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Taconite production

In 1933, the first cargo of taconite, a hard rock containing 25% - 30% iron, was shipped to the Ford Motor Company of River Rouge, Mich. The cargo had been produced 21 Jun 1922 by the Mesabi Iron Co. of Babbitt, Minn. The firm had begun operation in Nov 1919. Taconite is a low-grade ore containing only up to 30% magnetite and hematite as tiny particles scattered throughout a very tough variety of quartz called chert. The Mesabi Range, a giant area of low rolling hills in northeastern Minnesota is among the world's best known deposits of iron (discovered 1887). Mesabi is an Ojibwa name meaning "giant." After WW II, when other, higher grade iron ore had been depleted, an industrial method to exploit taconite ore was developed.
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