In a random survey 250 people participated.Out of 250 people who took part in survey , 40 people have listened to Pink Floyd. 30 have listened to metallica and 20 have listened to john denver.If 10 people have listened to all three,then find no. of people who listened only to Pink Floyd.

In a random survey 250 people participated.Out of 250 people who took

1.	In a random survey 250 people participated.Out of 250 people who took part in survey , 40 people have listened to Pink Floyd. 30 have listened to metallica and 20 have listened to john denver.If 10 people have listened to all three,then find no. of people who listened only to Pink Floyd.
Answer» In a random survey 250 people participated.Out of 250 people who took part in survey , 40 people have listened to Pink Floyd. 30 have listened to metallica and 20 have listened to john denver.If 10 people have listened to all three,then find no. of people who listened only to Pink Floyd.