Aptitude Test Interview Question

In an examination, a student must answer 70% of the questions correctly. If a student has answered 35 questions correctly, out of the first 50 questions, will they qualify? What is the minimum number of questions in the paper?

To determine if the student will qualify, we can use the formula:

Percentage of questions answered correctly = (Number of questions answered correctly / Total number of questions) * 100%

Let x be the total number of questions in the paper. Given that the student answered 35 out of the first 50 questions correctly:

Percentage of questions answered correctly = (35/50) * 100%

Since the student must answer 70% of the questions correctly to qualify, we set up the equation:

(35/50) * 100% = 70%

Solving for x, we get:

x = (35 * 100) / 70

Therefore, the minimum number of questions in the paper for the student to qualify is:

x = 50

The student needs to answer all 50 questions to qualify.