Multiple choice

The question given below contains two statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the question? Mark answer- To earn a grade of B in her German class, Deepti must have an average score of 75% in examination. She has taken 4 examinations so far. What is the minimum percentage she must get in the fifth examination to earn a grade B? I. She averaged 71% in her first 4 examinations. II. If maximum marks in fifth exam is 20 more than the previous exam and maximum marks in first four exams are equal.

  1. If statement I alone is sufficient but statement II alone is not sufficient.

  2. If statement II alone is sufficient but statement I alone is not sufficient.

  3. If each statement alone (either I or II) is sufficient.

  4. If statement I and II together are not sufficient.

  5. If both statement together are sufficient, but neither statement alone is sufficient.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Both statements together are NOT sufficient. Statement I gives the first four exam average (71%). Statement II talks about maximum marks differences but doesn't give us the actual maximum marks. To find the minimum percentage needed in exam 5, we need to know the maximum marks of all exams to set up the equation properly.

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