Certain metals have a tendency to form compounds which have a "complex structure" and are known as complex. M is a metal with such tendencies and is forming compound like $\left[\mathrm{M}{\left({\mathrm{NH}}_3\right)}_5\mathrm{Br}\right]{\mathrm{Br}}_2$. If it is known that solution of these furnish only those ions which are outside the co-ordination sphere "[ ]" (the bracketed part), then calculate the weight (in g) of $\mathrm{AgBr}$ ppt obtained when 1000 g solution of the complex compound containing 40 % by wt. of the complex compound is reacted with 1000 g solution of ${\mathrm{AgNO}}_3$ containing 17 % ${\mathrm{AgNO}}_3$ by weight.
[Atomic weight of M = 75 ]