I need help with a Venn Diagram math problem. I uploaded the document below. Thank you!!!

Question

anonymous · Answer

attachment

anonymous · Answer

|dw:1367349750453:dw|
Try to put the numbers in. e.g. 44 purchased mysteries, so the numbers in the 'Mysteries' circle should add up to 44. 
Hint: Start with the number of people who bought all three types of book / two types.

anonymous · Answer

Ok, I'll try that. If I am unable to get it. Can I message you back and you help me fill it in?

anonymous · Answer

Sure.

anonymous · Answer

Thank you so much

anonymous · Answer

Ok, I started it and am already lost. I need help :(

anonymous · Answer

Okay, so do you know what goes in the shaded area? i.e. number of people who bought all three, since all three circles overlap there. |dw:1367350582363:dw|