MATH BOOK Math Book True | Page 7
2) AMARILLO
Compré 50 libros, vendí 20 en s/.60.00 perdiendo s/.2.00 en cada uno de
ellos y 20 ganando s/1.00 en cada uno de ellos. ¿A cómo debo vender los
libros restantes para no ganar ni perder?
(A) s/. 7
Solución:
:
(B) s/. 9
(C) s/ 8
MATH BOOK Math Book True | Page 6
MATH BOOK Math Book True | Page 8
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