Charlene earns $\$150$ more per week than her roommate Kristi, who earns $\$200$ less than her other roommate Sacha. Together the three friends earn $\$2050$ per week. How much does each girl earn per week ?

Question

$\begin{array}{1 1} a)\;\text{Sacha} -\$ 750,\text{Charlene}-\$800,\text{Kristi}-\$500 \\ b)\;\text{Sacha} -\$ 700,\text{Charlene}-\$850,\text{Kristi}-\$500 \\ c)\;\text{Sacha} -\$ 850,\text{Charlene} -\$700,\text{Kristi}-\$500\\ d)\;\text{Sacha} -\$ 500,\text{Charlene}-\$700,\text{Kristi}-\$850 \end{array} $