Question

A+B=100 C+A= 200 C+D=300 A+B+C+D=500 A+D =?

Answer 1

Answer:

A+D = 200

Step-by-step explanation:

A+B=100

A=50,B=50

C+A=200

C=150,A=50

C+D=300

C=150,D=150

A=50,D=150

A+D=200