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Calculate the number 5225

NUMBERMANIA: Calculate the number 5225 using numbers [5, 3, 1, 6, 25, 656] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 9

The first user who solved this task is Nasrin 24 T.

#brainteasers #math #numbermania

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It's Probably Okay, Dad

A man in a hurry, taking his 8-year-old son to school, made a turn at a red light where it was prohibited.
"Uh-oh, I just made an illegal turn!" the man said.
"Aw, Dad, it's probably okay," the son said. "The police car right behind us just did the same thing."

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James Prescott Joule

Born 24 Dec 1818; died 11 Oct 1889 at age 70. English physicist who established that the various forms of energy - mechanical, electrical, and heat - are basically the same and can be changed, one into another. Thus he formed the basis of the law of conservation of energy, the first law of thermodynamics. He discovered (1840) the relationship between electric current, resistance, and the amount of heat produced. In 1849 he devised the kinetic theory of gases, and a year later announced the mechanical equivalent of heat. Later, with William Thomson (Lord Kelvin), he discovered the Joule-Thomson effect. The SI unit of energy or work , the joule (symbol J), is named after him. It is defined as the work done when a force of 1 newton moves a distance of 1 metre in the direction of the force.

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