Question

72. If the circle x^2 + y^2 + 4x + 22y +c=0 bisects the circumference of the circle x² + y^2 - 2x + 8y-d=0, then
c+d is equal to
(1) 60
(2) 50
(3) 40
(4) 56
​

Answer 1

56

I am not sure

this answer is write or wrong

Answer 2

second part bcz common chord of the given circle is br