Calculate the number 802
[7507] Calculate the number 802 - NUMBERMANIA: Calculate the number 802 using numbers [4, 2, 2, 7, 98, 628] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 1
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Calculate the number 802

NUMBERMANIA: Calculate the number 802 using numbers [4, 2, 2, 7, 98, 628] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
#brainteasers #math #numbermania
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Good News, Bad News

A minister stood in front of his congregation and announced, "I have good news and bad news. The good news is we have enough money to pay for our new building program. The bad news is that it’s still in your pockets.”
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Nasir ad-Din al-Tusi

Born 18 Feb 1201; died 26 Jun 1274 at age 73.Muhammad ibn Muhammad ibn al-Hasan al-Tusi was a Persian philosopher, scientist, mathematician and astronomer who made outstanding contributions in his era. When The Mongol invasion, started by Genghis Khan, reached him in 1256, he escaped likely death by joining the victorious Mongols as a scientific advisor. He used an observatory built at Maragheh (finished 1262), assisted by Chinese astronomers. It had various instruments such as a 4 metre wall quadrant made from copper and an azimuth quadrant which was Tusi's own invention. Using accurately plotted planetary movements, he modified Ptolemy's model of the planetary system based on mechanical principles. The observatory and its library became a centre for a wide range of work in science, mathematics and philosophy. He was known by the title Tusi from his place of birth (Tus).
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