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Calculate the number 779

NUMBERMANIA: Calculate the number 779 using numbers [9, 7, 5, 8, 20, 689] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 33

The first user who solved this task is Sanja Šabović.

#brainteasers #math #numbermania

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Lead Balloon

My grandfather invented the cold air balloon...
It never really took off.

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Charles Darwin

Died 19 Apr 1882 at age 73 (born 12 Feb 1809). Charles Robert Darwin was an English naturalist who presented facts to support his theory of the mode of evolution whereby favourable variations would survive which he called “Natural Selection” or “Survival of the Fittest,” and has become known as Darwinism. His two most important books were On the Origin of Species by Means of Natural Selection (1859) and The Descent of Man, and Selection in Relation to Sex.«

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