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Exam
In a group of 30 persons,a total of 16 take tea while 9 take tea but not
coffee. how many persons in this group take coffee but not tea?
Read Solution (Total 12)
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- 14 persons take coffee but not tea.
As per the qn., out of 30 persons totally 16 take tea.
So, 30-16 = 14 (Remaining are take coffee) - 13 years agoHelpfull: Yes(5) No(7)
- No. of persons who take only tea=9
Total No. of persons who take tea =16
So , nO. Of persons taking both coffee & tea=16-9=7..(assuming that every person has to take atleast 1 of the two)
...So T=people taking only tea
TC=people taking both
C=people taking only coffee ; N=Total people
Clearly , T+TC+C=N
...so C=N-T-TC=30-9-7=14
hENCE aNSWER is 14..... - 13 years agoHelpfull: Yes(5) No(5)
- 5 bcz in total of 30 9 take only tea but not coffee then 30-9=21
and 16wil take coffee or tea then 21-16=5 - 13 years agoHelpfull: Yes(5) No(10)
- ans=7
by using ven diagram ,7 take both tea and coffee, - 12 years agoHelpfull: Yes(3) No(2)
- answer would be 7.because 16-9=7
9 of them take tea but not coffee and total is 16. - 13 years agoHelpfull: Yes(2) No(5)
- ans = 14
total persons = 30
7 take tea and 9 take tea and coffee
means remaining 14 take coffee
otherwise the answer is zero since nothing was described about the remaining 14 persons - 13 years agoHelpfull: Yes(1) No(2)
- 14 take coffee but not tea.
group of persons, X = 30
total no. of persons who take tea only, Y = 16
Therefore,
person whose take coffee not tea is , Z = X-Y
= 30 - 16
= 14 - 13 years agoHelpfull: Yes(1) No(2)
- Ans. 14 persons.
If every person in the group has to take atleast one thing tea or coffee, then 14 persons takes cofee but not tea.7 persons take both tea and coffee. 9 persons take tea but not coffee.
- 13 years agoHelpfull: Yes(0) No(4)
- 14
If every person in the group has to take atleast one thing tea or coffee, then 14 persons takes cofee but not tea.7 persons take both tea and coffee. 9 persons take tea but not coffee - 13 years agoHelpfull: Yes(0) No(2)
- total 30 members
tea=9
Tea + coffie= 16
coffie= remaining 5
i.e.., 30-(16+9)=5
- 11 years agoHelpfull: Yes(0) No(1)
- only tea take persons are 9
both tea and cofee take persons are 5
total persons in are 30
only cofee take persons = total - only tea take persons = 21
- 8 years agoHelpfull: Yes(0) No(0)
- 14 can never be the answer
- 8 years agoHelpfull: Yes(0) No(0)
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