Data Interpretation Ques 361
Directions : Study the following information carefully and answer the given questions.
Total 200 students were surveyed regarding which (one or more than one) subjects (Physics, Chemistry, Maths) they like.115 students do not like Maths. $5 \%$ of the students like all 3 subjects. 25 students like both Physics and Chemistry (but not Maths). Number of students who like Chemistry only is 10 more than those who like Physics only. 105 students like Chemistry. 20 students like Maths only.
Out of the number of students who like exactly 2 subjects, if the respective ratio between the number of boys and that of girls is $7: 9$, how many girls like exactly 2 subjects?
45
35
42
36
54
Show Answer
Correct Answer: (1)
Solution: (1) Students who like exactly two subjects $=f+d+g$
$=25+35+20=80$
Boys : Girls $=7: 9$
$\therefore$ Number of girls
$=\frac{9}{16} \times 80=45$
BETA
