BRAIN TEASERS

enter your answer and press button OK

Calculate the number 775

NUMBERMANIA: Calculate the number 775 using numbers [7, 3, 7, 4, 82, 539] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 43

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

Second Opinion

A patient has a sore throat and goes to a doctor to get treatment for it.
Doctor: Your tonsils have to come out.
Patient: I wanna second opinion.
Doctor: Okay, you're ugly, too.

Jokes of the day - Daily updated jokes. New jokes every day.

Follow Brain Teasers on social networks

Brain Teasers

puzzles, riddles, mathematical problems, mastermind, cinemania...

Leo Hendrik Baekeland

Born 14 Nov 1863; died 23 Feb 1944 at age 80. Leo Henricus Arthur Baekeland was a Belgian-American industrial chemist who invented the first thermosetting plastic, Bakelite, that did not soften when heated. His first successful invention was Velox (in the 1890's), a photographic paper that could be used with artificial light rather than sunlight, which he sold in 1899 to George Eastman for $1 million. He then experimented to find a synthetic substitute for shellac, a useful insulator of wires in electric coils. Eventually, he was able to control heat and pressure for a formaldehyde-phenol reaction. By 1909, he displayed the world's first fully synthetic plastic, which could be used not only for insulators, but moulded into buttons, knobs and countless other items. With this patented product, he helped found the modern plastics industry.«

This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.