Data sufficiency
A question and two statements; options: (I alone is sufficient / II alone is sufficient / both together are needed / both together are not sufficient). Use exactly these four meanings as the options.
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Take a full mock →Q1 · Data sufficiency · MEDIUM
Decide whether the statements give enough data to answer the question. A shopkeeper sold a laptop at a profit. What was its cost price? Statement I: The profit was Rs 2,000. Statement II: The profit was 25% of the cost price.
Q2 · Data sufficiency · MEDIUM
Decide whether the statements give enough data to answer the question. n is a two-digit number. What is n? Statement I: n is a perfect square between 60 and 70. Statement II: n is the cube of a whole number and its tens digit is 6.
Q3 · Data sufficiency · EASY
Decide whether the statements give enough data to answer the question. A train crosses a pole in 10 seconds. How long is the train? Statement I: The train runs at 54 km/h. Statement II: The train is 50 m shorter than the platform at the next station.
Q4 · Data sufficiency · HARD
Decide whether the statements give enough data to answer the question. A and B together finish a job in 12 days. How many days would A take alone? Statement I: The job is 120 units of work. Statement II: B works twice as fast as A.