Calculate the number 9809
[1523] Calculate the number 9809 - NUMBERMANIA: Calculate the number 9809 using numbers [7, 6, 2, 6, 21, 745] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 29 - The first user who solved this task is Sanja Šabović
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Calculate the number 9809

NUMBERMANIA: Calculate the number 9809 using numbers [7, 6, 2, 6, 21, 745] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 29
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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The Monastery on a Cliff

There is a story about a monastery perched high on a cliff several hundred feet in the air. The only way to reach the monastery was to be suspended in a basket which was pulled to the top by several monks who pulled and tugged with all their strength. Obviously the ride up the steep cliff in that basket was terrifying. One tourist got exceedingly nervous about half-way up as he noticed that the rope by which he was suspended was old and frayed. With trembling voice, he asked the monk who was riding with him in the basket how often they changed the rope.
The monk thought for a moment and answered brusquely, "Whenever it breaks."
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Sir John Graham Kerr

Born 18 Sep 1869; died 21 Apr 1957 at age 87.English embryologist whose research advanced knowledge of the evolution of vertebrates. He also promoted ideas in naval camouflage for WWI. Early in his career, pursuing his zoological interests, Kerr went on two expeditions to the Pilcomayo River in South America. Much of his subsequent research was based on samples collected during these expeditions. In a letter to Winston Churchill, dated 24 Sep 1914, he referred to observing animal camouflage in South America, and recommended painting war ships with graduated shading. He also communicated with Ernest Bevin and Clement Atlee and others concerning camouflage. Although sometimes credited with invention of the dazzle scheme of camouflage, his ideas were less extreme.«
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