Question 380514
d/550 + (2900-d)/600 = 5
multiply by 50
50d/550 + (2900-d)*50/600 = 5*50
..
d/11 +(2990-d)/12= 250
...
LCD = 132
(12d+11(2900-d))/132=250
12d+31900-11d=132*250
d=132*250-31900
d= 1,100
...
m.ananth@hotmail.ca