CAT Exam

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CAT Other Question

the of the ages of the father an sonsis 45 years .five years ago the product of their ages was 124 . determine present age?
49, 7 years
36, 9 years
64,14 years
none These questions are based on the following information.
In a class, 60% of the students failed in Physics and 50% of the students failed in Biology.
The number of students who failed in Chemistry is 150% of the number of students passed
in Physics. 40 students passed in both Physics and Chemistry, 60 students passed in Biology
and Chemistry and 40 students failed in chemistry only. 20 students failed in all the three
subjects and 10 students passed in all the three subjects
How many students passed in Chemistry only?