DILR – Logical Reasoning – Adriana, Bandita, Chitra, and Daisy are four female
The following set contains four questions related to Logical Reasoning. Choose the best answer to each question.
Adriana, Bandita, Chitra, and Daisy are four female students, and Amit, Barun, Chetan, and Deb are four male students. Each of them studies in one of three institutes – X, Y, and Z. Each student majors in one subject among Marketing, Operations, and Finance, and minors in a different one among these three subjects. The following facts are known about the eight students:
Three students are from X, three are from Y, and the remaining two students, both female, are from Z.
Both the male students from Y minor in Finance, while the female student from Y majors in Operations.
Only one male student majors in Operations, while three female students minor in Marketing.
One female and two male students major in Finance.
Adriana and Deb are from the same institute. Daisy and Amit are from the same institute.
Barun is from Y and majors in Operations. Chetan is from X and majors in Finance.
Daisy minors in Operations.
1) Who are the students from the institute Z?
a) Bandita and Chitra
b) Adriana and Bandita
c) Adriana and Daisy
d) Chitra and Daisy
2) Which subject does Deb minor in?
a) Cannot be determined uniquely from the given information
b) Marketing
c) Finance
d) Operations
3) Which subject does Amit major in?
a) Finance
b) Operations
c) Cannot be determined uniquely from the given information
d) Marketing
4) If Chitra majors in Finance, which subject does Bandita major in?
a) Finance
b) Operations
c) Cannot be determined uniquely from the given information
d) Marketing
Solution:
Let Daisy and Amit are from some institute A . Adriana and Ded be from the some institute B. So Bandita and Chitra must be from same institute (let’s say C) but as only two females are from Z so Bandita and Chitra must be from Z. Now the given information can be tabulated as bellow –
Name
Gender
Institute
Major
Minor
Adriana
Female
B
Bandita
Female
Z
Chitra
Female
Z
Daisy
Female
A
O
Amit
Male
A
Barun
Male
Y
O
Chetan
Male
X
F
Deb
Male
B
From point 3) three female students minor in Marketing and Daisy minors in operations (O) so other three must have minored in Marketing (M)
From point 2) Female student from Y majors in operations so Daisy cannot be from Y so Daisy is from X so is Amit. So Adriana and Deb are form Y. Also Barun and Deb both will miner in Finance (F) and Adrina will major in Operation (O).
Now the table will look like ,
Name
Gender
Institute
Major
Minor
Adriana
Female
Y
O
M
Bandita
Female
Z
F/O
M
Chitra
Female
Z
F/O
M
Daisy
Female
X
F/M
O
Amit
Male
X
F
O/M
Barun
Male
Y
O
F
Chetan
Male
X
F
O/M
Deb
Male
Y
M
F
Now all the questions can be answered.
1. a) Bandita and Chitra 2. c) Finance 3. a) Finance 4. b) operation
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