in a village 4000 people watch a tv.in which 1500 watch A
channel.2000 watch B channel and 2500 watch C Channel.500
people watch A and B channel.800 watch A and C
Channel.1000 watch B and C Cahnnel.find maximum people who
watch maximum no of channels?
- 9 Answers
- 15008 Views
- Siemens, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / karan_intouch
N(A u B u C) = N(A)+N(B)+N(C)-N(A n B)-N(B n C)-N(C n A)+N(A
n B n C)
4000 = 1500 + 2000 + 2500 – 800 – 1000 – 800 + N(A n B n C)
Hence N(A n B n C) = 300
| Is This Answer Correct ? | 35 Yes | 1 No |
Answer / chaitu
Well... The Answer is quite simple...
From the basic formula
(Intersection of A,B= A+B- Union of A,B)
Apply above formula for 3 variables.
Intersection of A,B&C= 1500+2000+2500-800-500-1000-4000
= -300
Therefore, 300 is the Answer....
| Is This Answer Correct ? | 21 Yes | 2 No |
Answer / puru vatsa
Total no. of People = 4000
500 people watch A and B channel and 800 people watch A and C
and 1500 watch A channel.
Hence people who watch only A = 1500-(500+800) = 200
Similarly people who watch only B = 2000-(500+1000) = 500
and people who watch only C = 2500-(800+1000) = 700
Hence total no. of people watching these channels =
200+500+700+500+800+1000 = 3700
Hence people watching A,B,C = 4000 - 3700 = 300 (Ans)
Tip :- Draw Venn-Diagram and then solve.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / kiran
100
as
people watching only a channel=200
only b channel=700
only c channel=700
total=1600
now a+b=500
b+c=1000
c+a=800
total=2300
new total=3900
so 4000-3900=100
| Is This Answer Correct ? | 1 Yes | 5 No |
Answer / yaswanthraj
Well.....500 watch A and B ....(2000-15000)...obvious
and 800 watch A and C...
Actually....A:1500;c:2500
So both A and C==> intersection(2500-1500=1000)
Given 800
so 1000-800=200
200 watch A,B and C....max channels
and hence it is the answer :-)
| Is This Answer Correct ? | 3 Yes | 16 No |
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?
Substitute digits for the letters to make the following subtraction problem true. S A N T A - C L A U S ----------------- X M A S Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter M, no other letter can be 3 and all other M in the puzzle must be 3.
Without using any loops print {{{}}} (u cant use goto,for,while etc..).
There is a shortage of tubelights, bulbs and fans in a village - Kharghar. It is found that ? All houses do not have either tubelight or bulb or fan. ? exactly 19% of houses do not have just one of these. ? atleast 67% of houses do not have tubelights. ? atleast 83% of houses do not have bulbs. ? atleast 73% of houses do not have fans. What percentage of houses do not have tubelight, bulb and fan?
A cube is divided into 125 pieces.. then four columns are removed then coloured all side black.. i) how many 0 side painted cubes? ii) how many 1 side painted cubes? iii) how many 2 side painted cubes? iV) how many 3 side painted cubes? V) how many 4 side painted cubes?
7 Answers Stairway Engineering, Tata Elxsi,
Hi, this is das. i will attend bank of baroda 2008 clerical exam. i need model bank exam question papers. please send me. this is my mail id: thulasi.dasan@yahoo.co.in
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,
Ekta got chocolates to give her friends on her Birthday. If she gives 3 chocolates to each friend, one friend will get only 2 chocolates. Also, if she gives 2 chocolates to each friends, she will left with 15 chocolates. How many chocolates Ekta got on her Birthday? and how many friends are there?
You are in a boat with your mother and wife. Suddenly you are forced to drop somebody into water due to boat overloading. You cannot drop yourself. Whom will you drop?
Given the following facts: 1. Dinesh is younger than Farukh and older than Gurmit. 2. Jatin is younger than Chandu and older than Eshrat. 3. Amit is younger than Irfan and older than Chandu. 4. Farukh is younger than Bhavin and older than Hemant. 5. Irfan is younger than Gurmit and older than Jatin. 6. Hemant is older than Gurmit. Who is the Youngest?
agar aapne kabhi kisi se saccha pyar kiya hai to is gaane ko complete karo K---N -O --H--T - --G--T---I-A J---N T--S-- S----H--
The secret agent X emailed some code to his head office. They are "RADAR, LEVEL, ROTOR, REDIVIDER, MOTOR". But four of these five words have something in common and one is fake. Can you tell which one is fake? Ignore the fact that four of the code-words are of the same length.
English 
