Passage Based Questions: Quantitative Aptitude - 1 | Passage Based Questions for CLAT Preparation PDF Download

From common explanation, we have
Tuesday = 24% of 900 = 216
Friday = 27% of 900 = 243

From common explanation, we have On Wednesday, from common explanation, total 144 people came in contact with her.

Let the number of men below 50 years were ‘y’, then
Number of men who were above 50 years age = y – 40% of y = 0.6y
Total men = y + 0.6y = 1.6y = 64 or y = 40
Men above 50 years of age found positive = 64 – 40 = 24
Hence, option D is correct.

From common explanation, we have 360 people who were found positive on 25 feb.
Each of whom came in contact with an average of 12 people each day. Thus in three days, they would have come in contact with 3 × 12 = 36 people.
There were 360 people, so all would have come in contact with 36x360 people
Only 45% of these were found positive, thus = 45% of 36 × 360 = 5832
Hence, option C is correct.

From common explanation, we have Only 40% of people were found positive who she came in physical contact with.
Thus 40% of 900 = 360
Hence, option E is correct.

From common explanation, we have
Total people she came in contact with on Monday from common explanation = 162
Let total ‘y’ men she came in contact with, then, we have

135y = 162 × 35
y = 42
Number of women who found positive = number of men = all men = 42
Total people who found positive = 42 + 42 = 84
Number of people found negative = 162 – 84 = 78