ShoutBox (Part 1)

@Brooklyn said:
doubt in a q of Set:
total students in cls =100 each pass in atleast 1 subj . 95 pass in Physics, 90 in Enlgish, 85 in MAths, 60 in Science and 10 in Sanskrit. How many max pass exactly 4 subj ???
Method bhi dena plz
60?
@Brooklyn : ans 80 hain kya??
no no it must be 60 ...science ka value check nahin kiya tha pehle...:(
edited the post
@shadowwarrior said:
ex1 + EX2 + ex3 + ex4 + ex5 = 100 ex1 + 2ex2 + 3ex3 + 4ex4 + 5ex5 = 95+90+85+60+10 = 340==>ex2 + 2ex3 + 3ex4 + 4ex5 = 240using this, we can say ex4 can go to a max of 240/3 = 80...but when science has a max of 60 passed, the number of students who have passed atleast 4 subjects can't be more than 60.....hence i will go with 60...is it correct...? if not, i will again have to start searching abt venn diagram questions ......
q isnt about atleast 4 its about exactly 4
@deedeedudu said:
60?
60 kaise kiya logic do
@azure09 said:
@Brooklyn : ans 80 hain kya?? or is it 76 ??
logic yar
@vikky312 said:
kahin max 70 to nahi?
@Brooklyn said:
q isnt about atleast 4 its about exactly 4
its a typing mistake.....edited ....remaining remains the same
@Brooklyn said:
60 kaise kiya logic do
logic yar
Bar graph plot kar lo
OA kya hai?
@deedeedudu said:
Bar graph plot kar lo OA kya hai?
Dekh jisne bar graph se solve kiya usne kaha 70 but i can get 80 even via bar graph , so acc to me shld be 80 !!!!

n
ex1 + EX2 + ex3 + ex4 + ex5 = 100
ex1 + 2ex2 + 3ex3 + 4ex4 + 5ex5 = 95+90+85+60+10 = 340

isse bhi
ex2 + 2ex3 + 3ex4 + 4ex5 = 240
using this, we can say ex4 can go to a max of 240/3 = 80...

aa rha hai

@shadowwarrior said:
ex1 + EX2 + ex3 + ex4 + ex5 = 100 ex1 + 2ex2 + 3ex3 + 4ex4 + 5ex5 = 95+90+85+60+10 = 340==>ex2 + 2ex3 + 3ex4 + 4ex5 = 240using this, we can say ex4 can go to a max of 240/3 = 80...but when science has a max of 60 passed, the number of students who have passed ex4 subjects can't be more than 60.....hence i will go with 60...is it correct...? if not, i will again have to start searching abt venn diagram questions ......

@Brooklyn said:
60 kaise kiya logic do
logic yar
@deedeedudu said:
Bar graph plot kar lo OA kya hai?
Bar graph!

Par 70 aata usse to!

--------------------------------------95
----------------------------------90
-----------------------------85
-------------60 + ------10

ans = 70


@Brooklyn said:
Dekh jisne bar graph se solve kiya usne kaha 70 but i can get 80 even via bar graph , so acc to me shld be 80 !!!!
n
ex1 + EX2 + ex3 + ex4 + ex5 = 100
ex1 + 2ex2 + 3ex3 + 4ex4 + 5ex5 = 95+90+85+60+10 = 340
isse bhi
ex2 + 2ex3 + 3ex4 + 4ex5 = 240
using this, we can say ex4 can go to a max of 240/3 = 80...
aa rha hai
Bar graph se 80 kaise aaya?
@vikky312 said:
Bar graph!Pas 70 aata usse to!--------------------------------------95 ----------------------------------90 -----------------------------85 -------------60 + ------10ans = 70
@vikky312 said:
Bar graph se 80 kaise aaya?
haan ab ismei flaw btau??

take 5 from physics n add to eqn below
n take 5 from 90 walla n add to 60+10 walla

ie u get

-------------90
-------------85
-------------85
--------60+ --10-- +10 = 80 ismei aisa q nhi karte???
@vikky312 said:
Bar graph!Pas 70 aata usse to!--------------------------------------95 ----------------------------------90 -----------------------------85 -------------60 + ------10ans = 70
Jab 60 aur 10 hai do subj mai to 70 kaise ho sakta hai :splat:
@Brooklyn said:
Dekh jisne bar graph se solve kiya usne kaha 70 but i can get 80 even via bar graph , so acc to me shld be 80 !!!!
n
ex1 + EX2 + ex3 + ex4 + ex5 = 100
ex1 + 2ex2 + 3ex3 + 4ex4 + 5ex5 = 95+90+85+60+10 = 340
isse bhi
ex2 + 2ex3 + 3ex4 + 4ex5 = 240
using this, we can say ex4 can go to a max of 240/3 = 80...
aa rha hai
Aree par Sanskrit ke 60 hi hai, that is the subject with 4th highest number of people who've passed, so 60 se zyaada not possible.

@Brooklyn said:


Let the number of students who have passed exactly 1 subject be a, 2 subjects be b, and so on till e...
Now S=a+2b+3c+4d+5e=340
X=a+b+c+d+e=100
S-X=2c+b+3d+4e=240
to maximise d, we can have b=c=0, and now we get the equation-->3d+4e=240
As the limit of the science students =60, d=60,e=15....is this correct??
@ankita14 said:
Aree par Sanskrit ke 60 hi hai, that is the subject with 4th highest number of people who've passed, so 60 se zyaada not possible.
60 se zyada not possible for exactly 5 subj i've asked for 4
@Brooklyn said:
haan ab ismei flaw btau??
take 5 from physics n add to eqn below
n take 5 from 90 walla n add to 60+10 walla
ie u get
-------------90
-------------85
-------------85
--------60+ --10-- +10 = 80 ismei aisa q nhi karte???
i don't know this bar graph method.....

put all these aside and think.......u say that 80(at max) can be the no. of people who study 4 subjects...which 4 subjects can they be....?

when 95 pass in Physics, 90 in Enlgish, 85 in MAths, 60 in Science......
@ankita14 said:
Jab 60 aur 10 hai do subj mai to 70 kaise ho sakta hai
Arre!!!

5 sub thodi na pucha hai, exactly 4 ko max karna hai na!!!

Phir se dekho zara graph!
@azure09 said:
Let the number of students who have passed exactly 1 subject be a, 2 subjects be b, and so on till e...
Now S=a+2b+3c+4d+5e=340
X=a+b+c+d+e=100
S-X=2c+b+3d+4e=240
to maximise d, we can have b=c=0, and now we get the equation-->3d+4e=240
As the limit of the science students =60, d=60,e=15....is this correct??
bhai d>60 definately
@Brooklyn said:
haan ab ismei flaw btau??
take 5 from physics n add to eqn below
n take 5 from 90 walla n add to 60+10 walla
ie u get
-------------90
-------------85
-------------85
--------60+ --10-- +10 = 80 ismei aisa q nhi karte???
do what?

ye kya kiya??
@Brooklyn said:
bhai d>60 definately
haan yaar..kya bakwaas kiya tha mein ne...:( 80 is possible....
@vikky312 said:
Arre!!!5 sub thodi na pucha hai, exactly 4 ko max karna hai na!!!Phir se dekho zara graph!
@shadowwarrior said:
i don't know this bar graph method.....put all these aside and think.......u say that 80(at max) can be the no. of people who study 4 subjects...which 4 subjects can they be....?when 95 pass in Physics, 90 in Enlgish, 85 in MAths, 60 in Science......
Samajh aa Gaya , ye subjs ke combination ke liye max 60 hai par there can be 10 more studying phy math eng Sanskrit.