" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
numero de damas = x
PLANTEO DE LA ECUACION
(40-x)/x = 3/7
7(40-x) = 3x
280-7x = 3x
280 = 3x+7x
10x = 280
x = 280/10
x = 28
El numero de damas es de 28