Author Topic: Logical mathematical reasoning/Razonamiento lógico matemático. x2  (Read 1871 times)

0 Members and 1 Guest are viewing this topic.

Offline AdrenalineXV

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.


Offline [MAF]Agus

  • Manager
  • Posts: 1,600
  • (͡° ͜ʖ ͡°)
    • View Profile
  • In-game name: [MAF]Agus
Re: Logical mathematical reasoning/Razonamiento lógico matemático. x2
« Reply #1 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

Offline AdrenalineXV

Re: Logical mathematical reasoning/Razonamiento lógico matemático. x2
« Reply #2 on: April 05, 2015, 10:11:55 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