Question 892413
a+b=300,
0.09*a+0.14*b=0.1*300
a=300-b
0.09*(300-b)+0.14*b=30
27-0.09b+0.14*b=30
0.05*b=3
b=60
a=300-b
a=240
b=60
a=240 b=60