Math, asked by jaiveersharma, 1 year ago

in class 54 students are good in Hindi only 63 student or good in mathematics only 41 students are good in English only there are 18 student visa both in good in Hindi and mathematics 10 students are good in all the three subjects what is the number of student who are good in either
hindi and mathematics but not in English

sukulhanda01p3go2g: "what is the number of student who are good in either
hindi and mathematics but not in English " or do you mean "what is the number of student who are good in either
hindi or mathematics but not in English"

jaiveersharma: number of students who are good in either Hindi or mathematics but not in English

Answers

Answered by sukulhanda01p3go2g

we know ,
to make things short and clear
let g = "people who are good at"
so ,
according to the question
g maths = 63
g hindi = 54
g maths and hindi = 18
g maths , hindi and english = 10
since we dont want the people who are good at English and only want people who are good at hindi and maths , we will add 63+18+54 ,
answer is 135 students

sukulhanda01p3go2g: but in this question i tjink we'll need to include it

sukulhanda01p3go2g: no worries ignore it , answer is 125

jaiveersharma: but where is your 8 comw

sukulhanda01p3go2g: 18-10 = 8

sukulhanda01p3go2g: 18 people are good in maths and hindi , but inside it , 10 people are good at all 3 subjects so we will subtract it

jaiveersharma: just a minute,,iff we add 54+63-18 =99 it is for either hindi or mathematics

sukulhanda01p3go2g: it is sum of people who are "only" good at hindi or maths

sukulhanda01p3go2g: since 18-10 = 8 the answer is 54+63+8 = 125

khushirana1723: bss ab bahaut ho gya

jaiveersharma: ok,, don't be rude

Answered by Vibhanshu0

Answer is 125

HOPE YOU WOULD UNDERSTAND VERY WELL . BECUASE QUESTION UNDERSTANDING GET EASY BY VEIN DIAGRAM .

vote for my answer if it help much !!

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