Replace the question mark with a number
[3355] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 770 - The first user who solved this task is Sanja Šabović
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 770
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles
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A tired traveler decided to fi...

A tired traveler decided to find a hotel for the night. He stumbled to the front desk and said to the clerk, “Pardon me, I’m exhausted, I’ve been driving for fourteen hours, I’m hungry, and I have a headache. Can you just tell me what room I’m in?”
“Certainly, sir,” the helpful clerk replied. “You are in the lobby.”
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Ernst Engel

Died 8 Dec 1896 at age 75 (born 26 Mar 1821). German statistician, the head of the Prussian Statistical Bureau (1860-82), known for the "Engel curve," or Engel's law, which states that the proportion of expenditure on food will fall as income rises, i.e. food is a necessary good. Engel's law applies to goods as a whole. Demand for food, clothing and shelter - and for most manufactured products - doesn't keep pace with increases in incomes. Engel curves are useful for separating the effect of income on demand from the effects of changes in relative prices. Engel also examined the relationship between the size of the Prussian rye harvest and the average price of rye over a number of years prior to 1860, probably the first empirical study of the relationship between price and supply.
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