Question

Como eu posso descobrir o valor de A e B ???

Answer 1

6/5 × 1/10 × 9/5 = 9/10 × 3/5 × B
54/250 = 27 × B/50
27 × B × 250 = 2700
6750 × B = 2700
B = 2700/6750
B = 2/5

54/250 = 18/5 × 3/10 × A
54/250 = 54 × A/50
13500 × A = 2700
A = 2700/ 13500 
A = 1/5