Question 100555
Program has 110 participants
78  participants took CM 400
63 participants took  CM 450
54 participants took both CM 400 and CM 450


How many participants took CM 400 alone?

78 participants 

How many participants took CM 450 alone?

63 participants

How many participants did not take neither CM400 nor CM450?

110-54=

56 participants 


How many students did not take CM 400?

110-78=

32 students


How many students did not take CM 450?

110-63=

47 students



This is not a for sure answer but this is how I would answer it...

Good Luck!!!