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General => Off-Topic => Topic started by: AdrenalineXV on April 05, 2015, 09:49:20 pm

Title: Logical mathematical reasoning/Razonamiento lógico matemático. x2
Post by: AdrenalineXV on April 05, 2015, 09:49:20 pm
Eng-> Between A and B they have $128. If three-fifths of part A is equivalent to a ninth of part B. How much does B have?  Regards

Esp-> Entre A y B tienen $128. Si tres quintas partes de la parte A es equivalente a un noveno de la parte B. ¿Cuánto tiene B? Saludos cordiales.

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Title: Re: Logical mathematical reasoning/Razonamiento lógico matemático. x2
Post by: [MAF]Agus on April 05, 2015, 09:57:32 pm
A + B = 128 (1)

3/5 A = 1/9 B
A = 5/27 B (2)

5/27 B + B = 128
32/27 B = 128
B = 128*27/32
B = 108
Title: Re: Logical mathematical reasoning/Razonamiento lógico matemático. x2
Post by: AdrenalineXV on April 05, 2015, 10:11:55 pm
Quote from: [MAF]Agus on April 05, 2015, 09:57:32 pm
A + B = 128 (1)

3/5 A = 1/9 B
A = 5/27 B (2)

5/27 B + B = 128
32/27 B = 128
B = 128*27/32
B = 108

Muchas gracias Agus, ya la entiendo. =D