It’s b , i hope it’s not wrong :)
Answer:
first setup your problem. it should look like this :
(A) The print area is 4/10 × 100% = 40% of the total, so the ad area is ...
... 100% - 40% = 60% of the print area
(B) News : Ads = (40%) : (60%) = 2 : 3
Answer:
I have made it in above pic