Statement I: Out of a total of 200 readers, 100 read Indian Express, 120 read Times of India, and 50 read Hindu.
Statement II: Out of a total of 200 readers, 100 read Indian Express, 120 read Times of India, and 50 read neither.
How many people (from the group surveyed) read both Indian Express and Times of India?
From Statement I, we are not sure how many readers read all the newspapers, how many read two newspapers, or only one newspaper. Therefore, from Statement I alone, the question cannot be answered.
From Statement II, we can determine how many readers read both newspapers:
Number of readers who read both = (100 + 120) - (200 - 50) = 220 - 150 = 70
∴ The question can be answered with the help of Statement II alone.
Reinforce your conceptual grasp with related questions from NIMCET 2019:
Take timed full-length mock tests with authentic question distributions, negative marking (+12/-3 in Math), and instant All India Rank calculation.
Start Free Mock Test Series →