BRAIN TEASERS

enter your answer and press button OK

MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (11, 13, 15, 21, 23, 25, 51, 53, 55) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A*B+C.

Correct answers: 18

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math #magicsquare

Register with your Google Account and start collecting points.

Check your ranking on list.

A man walks into a chemist's ...

A man walks into a chemist's and says, "Can I have a bar of soap, please?" The chemist says, "Do you want it scented?" And the man says, "No, I'll take it with me now".

Ronnie Barker (1929-2005)

Picture: Getty

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...

Ivan Petrovich Pavlov

Died 27 Feb 1936 at age 86 (born 27 Sep 1849). Russian physiologist, who was awarded the 1904 Nobel Prize in Physiology or Medicine. He pioneered the investigation what he named the “conditioned reflex.” In the experiment which made him famous, he trained a hungry dog to associate the sound of a bell with receiving food. Thereafter, the dog would salivate on hearing the bell alone. This work began as merely a study in digestion, with a series of experiments on dogs to investigate how digestive secretions are regulated. He identified three stimuli that caused dogs to begin to salivate: seeing, smelling, or tasting food. He realized, digestion is partly controlled by sensory stimuli. In 1903, Pavlov published his results on this learned— “conditioned reflex,” (as opposed to an innate reflex, like a reaction to pain). He worked actively in the lab until his death at age 87.«[DSB gives birth date as 27 Sep 1849. EB gives Old Style: 14 Sep 1849 (New Style: 26 Sep 1849).]

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.