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
- 17369 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 |
What is the minimum number of races required to pick the best three horses from 25 horses if each race has maximum of 5 horses?
35 Answers Infosys, MAIT, PDF, State Bank Of India SBI, Wipro, ZoomInfo,
An ant had to travel from one corner of a room to diagonally opposite corner. It can walk on walls, floor and roof only. How will you find the shortest path for this ant ?
9 Answers Analog Devices, Cadence, TCS, ZS Associates,
A Newyorker stays in 36th floor. Daily he goes to his office by walk and returns. While raining, he takes the lift goes to lobby and reaches by walk to his office. In the evening he returns to the building, takes the lift and reaches his apartment on 36th Floor. When it is summer, he takes the lift, goes to lobby and reaches his office by walking. In the evening, he returns home, takes the lift goes to 30th floor and climbs all the six floors by stair case and reaches his apratment. Why?
What is the smallest whole number that, when divided by 2, leaves a remainder of 1; when divided by 3, leaves a remainder of 2; and so on, up to leaving a remainder of 9 when divided by 10?
24 Answers ASD Lab, Athena Health Care,
I am the owner of a pet store. If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have? (Expalin in Detail) a.4 canaries and 3 cages b.3 canaries and 4 cages c.4 canaries and 5 cages d.None of the above
1..Potatoes are made up of 99% water and 1% "potato matter." Jack bought 100 pounds of potatoes and left them outside in the sun for a while. When he returned, he discovered that the potatoes had dehydrated and were now only made up of 98% water. How much did the potatoes now weigh? 2..One boy can eat 100 chocolates in half a minute, and another can eat half as many in twice the length of time. How many chocolates can both boys eat in 15 seconds? 3..In the Olympic Games, the flags of six nations were flown on the masts in the following way. The flag of America was to the left of Indian tricolour and to the right of the flag of France. The flag of Australia was on the right of the Indian flag but was to the left of the flag of Japan, which was to the left of the flag of China. Find the two flags which are in the centre.
10 Answers CTS, MBA, Ramco,
In country X, democratic, conservative and justice parties have fought three civil wars in twenty years. TO restore stability an agreement is reached to rotate the top offices President, Prime Minister and Army Chief among the parties so that each party controls one and only one office at all times. The three top office holders must each have two deputies, one from each of the other parties. Each deputy must choose a staff composed of equally members of his or her chiefs party and member of the third party. 1. When Justice party holds one of the top offices, which of the following cannot be true (a) Some of the staff members within that office are justice party members (b) Some of the staff members within that office are democratic party members (c) Two of the deputies within the other offices are justice party members (d) Two of the deputies within the other offices are conservative party members (e) Some of the staff members within the other offices are justice party members. 2. When the democratic party holds presidency, the staff of the prime minister's deputies are composed I. One-fourth of democratic party members II. One-half of justice party members and one-fourth of conservative party members III. One-half of conservative party members and one-fourth of justice party members. (a) I only (b) I and II only (c) II or III but not both (d) I and II or I and III (e) None of these 3. Which of the following is allowable under the rules as stated: (a) More than half of the staff within a given office belonging to a single party (b) Half of the staff within a given office belonging to a single party (c) Any person having a member of the same party as his or her immediate superior (d) Half the total number of staff members in all three offices belonging to a single party (e) Half the staff members in a given office belonging to parties different from the party of the top office holder in that office. 4. The office of the Army Chief passes from Conservative to Justice party. Which of the following must be fired. (a) The democratic deputy and all staff members belonging to Justice party (b) Justice party deputy and all his or hers staff members (c) Justice party deputy and half of his Conservative staff members in the chief of staff office (d) The Conservative deputy and all of his or her staff members belonging to Conservative party (e) No deputies and all staff members belonging to conservative parties.
wo kya cheez hai jo saal me 1 baar mahine me 2 baar hafte me 4 baar aur din me 6 baar aati hai
39 Answers AAA, Global Systems, Google, Human Resources, Infosys, IOCL, Matter and Co, Mind Tree, Prakash Industries, Samsung, Serco, Shani, Shreya Garments, Suman Industries, TNT, VIP, WhatsApp, YDS,
i want model paper on SBI Clerk post,plz sed previous papers
0 Answers State Bank Of India SBI,
3 men are running in circle man A run with 20m/hr, man B run with 40m/hr, man C run with 50 m/hr , and the radius of cirlce is 200m then at what time they will meet together
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 person X have a certain number of mangoes, he gave 1/2 of total plus one mango to B, now he gave the 1/3 of remaining plus one mango to C, he gave the 1/4 of remaining plus one mango to D. Now he have no mango more, find how many mango was at beginning?
English 
