Question

Decompor 1090 em partes inversamente proporcionais a 2/3, 4/5 e 7/8.

Answer 1

a / 3/2 +  b / 5/4   + c / 8/7 = 1090 / 109 / /28  =  1090 x 28/109 =
30520 / 109   =  280

a = 3/2 . 280 = 840 / 2 = 420

b = 5/4 . 280 = 1400 / 4 = 350

c = 8/7 . 280 = 2240 / 7 = 320


Resposta As partes são :420 , 350 e 320