If the unit digit of integer n is greater than 2, what is the unit digit of n ? (1) The units digit of n is the same as the units digit of n2(2) The units digit of n is the same as the units digit of n3
Correct answer: D. Statements (1) and (2) together are not sufficient, and additional data is needed to answer the question
- A. Statement (1) alone is sufficient, but statement (2) alone is not sufficient to answer the question
- B. Statement (2) alone is sufficient, but statement (1) alone is not sufficient to answer the question
- C. Both statements taken together are sufficient to answer the question, but neither statement alone is sufficient
- D. Statements (1) and (2) together are not sufficient, and additional data is needed to answer the question
- E. Each statement alone is sufficient
Explanation
A,B,C,D are incorrect as there isn't enough data given for statement 1 and statement 2 to have context. Thus, they are both not sufficient enough to draw any conclusion. E is correct as we are not given enough data to draw a conclusion and statement 1 and 2 don't suffice.
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Quantitative reasoning applies arithmetic and basic algebra to numerical relationships, including percentages, ratios, averages, fractions, proportions, profit and loss, rates, time, work and measurement. Questions focus on translating words into equations, choosing an efficient method and checking whether the result is numerically reasonable.
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