In a college, the science department has three disciplines.
In total, 280 students study chemistry, 254 students study
physics and 280 students study biology. 97 students study
both chemistry and physics, 138 students study both physics
and biology, 152 students study both chemistry and biology.
73 students study all three disciplines. Can you determine
how many students there are in the science department?
- 7 Answers
- 17305 Views
- Accenture, HSPA, Satyam, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / megs
500
How?
n(C)=280
n(P)=254
n(B)=280
n(CnP)=97
n(PnB)=138
n(CnB)=152
n(CnPnB)=73
n(CUPUB)=n(C)+n(P)+n(B)-n(CnP)-n(PnB)-n(CnB)+n(CnPnB)
=280+254+280-97-138-152+73
=500
| Is This Answer Correct ? | 33 Yes | 1 No |
Answer / ram kumar.y
answer is 500.
i followed the same formula but in a logical way!
n(C)=280
n(P)=254
n(B)=280
n(CnP)=97
n(PnB)=138
n(CnB)=152
n(CnPnB)=73
n(CUPUB)=n(C)+n(P)+n(B)-n(CnP)-n(PnB)-n(CnB)+n(CnPnB)
=280+254+280-97-138-152+73
=500
| Is This Answer Correct ? | 14 Yes | 2 No |
Answer / suresh
dude its science n not computer.uh..... i think no.of
students is 73.(in all three P,C,B).387 in any2 departments.
| Is This Answer Correct ? | 5 Yes | 8 No |
Scientist decided to do a study on the population growth of rabbits. Inside a controlled environment, 1000 rabbits were placed. Six months later, there were 1000Z rabbits. At the beginning of the 3rd year, there were roughly 2828Z rabbits, which was 4 times what the scientists placed in there at the beginning of the 1st year. If Z is a positive variable, how many rabbits would be there at the beginning of the 11th year?
7 dogs have got 7 puppies each.Each puppy got 7 kittens as friends.They are all members of a club along with me.What is the strength of the club?
Jim lies a lot. He tells the truth on only one day in a week. One day he said: "I lie on Mondays and Tuesdays." The next day he said: "Today is either Sunday, Saturday or Thursday." The next day he said: "I lie on Fridays and Wednesdays." On which day of the week does Jim tell the truth?
Ship is 180 miles away from shore. At that time a plane started from shore to pass some information to the ship with 10 times velocity of ship's velocity. At what distance from shore they will meat?
Take 5 Zero's and perform any mathematical opretion on them to make ans 120. (can't use any number)
16 Answers CitiGroup, FIITJEE, MAHINDRA,
what three specific job positions do you target from qatar airways group u.k?
A fly is flying between two trains, each travelling towards each other on the same track at 60 km/h. The fly reaches one engine, reverses itself immediately, and flies back to the other engine, repeating the process each time. The fly is flying at 90 km/h. If the fly flies 180 km before the trains meet, how far apart were the trains initially?
Three men - Sam, Cam and Laurie - are married to Carrie, Billy and Tina, but not necessarily in the same order. Sam's wife and Billy's Husband play Carrie and Tina's husband at bridge. No wife partners her husband and Cam does not play bridge. Who is married to Cam?
A boy found that he had a 48 inch strip of paper. He could cut an inch off every second. How long would it take for him to cut 48 pieces? He can not fold the strip and also, can not stack two or more strips and cut them together.
There is a family party consisting of two fathers, two mothers, two sons, one father-in-law, one mother-in-law, one daughter-in-law, one grandfather, one grandmother and one grandson. What is the minimum number of persons required so that this is possible?
In a group of 25, 13 can speak Latin, 15 can speak French, and 6 don’t speak either. How many of these speak both Latin and French?
500 men are arranged in an array of 10 rows and 50 columns according to their heights. Tallest among each row of all are asked to come out. And the shortest among them is A. Similarly after resuming them to their original positions, the shortest among each column are asked to come out. And the tallest among them is B. Now who is taller A or B ?
English 
