BRAIN TEASERS

# MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (4, 5, 13, 14, 15, 23, 30, 31, 39, 97) 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.
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #magicsquare

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Q: Why do fireflies light up while they are having sex?

A: They're so turned on.

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### Jean le Rond D'Alembert

Died 29 Oct 1783 at age 65 (born 16 Nov 1717). French mathematician known for his work in various fields of applied mathematics, in particular dynamics. In 1743 he published his Traité de dynamique (Treatise on Dynamics). The d'Alembert principle extends Newton's third law of motion, that Newton's law holds not only for fixed bodies but also for free moving bodies. D'Alembert also wrote on fluid dynamics, the theory of winds, the properties of vibrating strings and conducted experiments on the properties of sound . His most significant purely mathematical innovation was his invention and development of the theory of partial differential equations. He published eight volumes of mathematical studies (1761-80). He was editor of the mathematical and scientific articles for Denis Diderot's Encyclopédie.
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