A student has 3 total hours available for studying every night. An op\'s profess
ID: 420756 • Letter: A
Question
A student has 3 total hours available for studying every night. An op's professor assigns her students 10 op's questions every day. After the student "prepares himself" to work on operations, each problem takes 6 minutes to complete. An accounting professor similarly assigns her students 10 questions every day, each of which takes 6 minutes to complete after the student is "prepared" to work on accounting. The student is "prepared" to immediately work on the next op's problem if he just completed an op's problem, and similarly he is "prepared" to immediately work on an accounting problem if the student just completed an accounting problem. Unless he just completed an op's problem, it takes the student 5 minutes to get prepared before tackling an op's problem, and similarly, unless he just completed an accounting problem it takes him 5 minutes to get prepared to tackle an accounting problem. What is the minimum amount of time the student needs to study each night?
1. 130 minutes
2. The student cannot complete the problems in the 180 minutes he has allotted
3. 120 minutes
4. 180 minutesLook at knee chairs
Explanation / Answer
Minimum will be when student does one setup for op’s then do all the op’s problems then do one setup for accounting and do all the accounting problems.
Each problem takes 6 minutes and we have 10 10 question of each subject, therefore total time for questions = 6 * 10 = 60.
And setup time is given = 5 minutes
Total time for op = 5 + 60 = 65 (same for accounting)
Total time = 65 + 65 = 130.
Hence the correct option is 1. 130 minutes.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.