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
number of students who are good in either Hindi or mathematics but not in English
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Answered by
7
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
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
but in this question i tjink we'll need to include it
no worries ignore it , answer is 125
but where is your 8 comw
18-10 = 8
18 people are good in maths and hindi , but inside it , 10 people are good at all 3 subjects so we will subtract it
just a minute,,iff we add 54+63-18 =99 it is for either hindi or mathematics
it is sum of people who are "only" good at hindi or maths
since 18-10 = 8 the answer is 54+63+8 = 125
bss ab bahaut ho gya
ok,, don't be rude
Answered by
2
Answer is 125
HOPE YOU WOULD UNDERSTAND VERY WELL . BECUASE QUESTION UNDERSTANDING GET EASY BY VEIN DIAGRAM .
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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"