Aptitude - There are 45 members in a group. 9 members have shoes but no hats. 18 members have shoes. How many m

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There are 45 members in a group. 9 members have shoes but no hats. 18 members have shoes. How many members are there who have only hats? a)12 b) 19 c) 27 d) 18

d)18.

no. of members who have both hats and shoes=
18 - 9 = 9

no. of members who have hats = 45 - 18 = 27

no. of members who have hats only hats = 27 - 9 = 18.

Total Answers and Comments: 8

Last Update: June 29, 2008 Asked by: khalid_it

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Best Rated Answer

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Submitted by: dear.chandru12

no of students have both shoes and hats is: 9 since 18 have shoe not mention about hat so (18-9)
no of students have shoe alone is:9
from the total students 45, 45-(9+9)=27

Above answer was rated as good by the following members:
dennyac

December 01, 2006 05:05:36

Neelam RAwat

RE: There are 45 members in a group. 9 members have sh...

18 member have shoes(no mention of hats)

9 member have shoes but not hat

i.e the member who are havin only hats are 45-18 27

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December 01, 2006 12:36:22

snehal

RE: There are 45 members in a group. 9 members have sh...

d) 18

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December 17, 2006 01:02:55

chandrakanth

RE: There are 45 members in a group. 9 members have sh...

no. of members who have both hats and shoes
18 - 9 9

no. of members who have hats 45 - 18 27

no. of members who have hats only hats 27 - 9 18.

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February 20, 2007 23:44:37

dear.chandru12

RE: There are 45 members in a group. 9 members have sh...

no of students have both shoes and hats is: 9 since 18 have shoe not mention about hat so (18-9)
no of students have shoe alone is:9
from the total students 45 45-(9+9) 27

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1 0

Overall Rating: +1

March 03, 2007 13:07:39

varun sabharwal

RE: There are 45 members in a group. 9 members have sh...

since their are 9 members with shoes only and 9 others with hats and shoes so if we have to select one of the options we have to go with 27

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1 0

Overall Rating: +1

March 21, 2007 00:50:19

Sandipan Dey

RE: There are 45 members in a group. 9 members have sh...

As the question says find those who have only hats the answer is 27....
total students with shoes 18(among these 9 dont have hats)
so no. of students with only hats 45-18 27

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October 26, 2007 07:01:51

Eric9

the answer is

27

B-cause.

There is three groups.

1. Shoes and NO Hat

2. Shoes and Hat

3. No Shoes and Hat

<<If there is some members who doesn't hav anything

the question hav to mention about that. BUT! There is no mention about that.

so I can suppose that there is no member who doesn't hav anything. >>

group 1 9

group 2 18 - 9 9

SO Group 3 45 -9 -9 27

there is the 27 members who doesn't hav shoes .

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June 29, 2008 11:02:12

rajani_vaddepalli15

Member Since: June 2008 Contribution: 19

RE: There are 45 members in a group. 9 members have shoes but no hats. 18 members have shoes. How many members are there who have only hats? a)12 b) 19 c) 27 d) 18

use the venn diagrams formulae : A union B A + B - A intersection B
where AUB 45 (total)
no.of people who've shoes A 18
no.of people who've hats B ?
no.of people who've only shoes but not hats A-B 9
no.of people who've shoes and hats A n B 9
no.of people who've only hats but not shoes B-A ?
apply formula
45 18+B-9
> B 36
> B-A 36-9
27
Ans:c

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