# KI UNIQUE MENTAL & NUMERICAL ABILITY

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## KI UNIQUE MENTAL & NUMERICAL ABILITY

This section tests the mathematical & reasoning skills of the examinee.
• It contains 50 questions and carries 50 marks. The time allotted for this section is 45 minutes.
• It covers various topics of algebra, arithmetic, geometry, data interpretation logical & analytical reasoning and non-verbal reasoning.

### BASIC TIPS:

1. Be well equipped with different short cut methods that are applicable.

For example;

If Quantity A: 1/7 and Quantity B: 14.28%, then a person knowing fractions can easily guess that Qty A is 12.8% and is less than Qty B.This can be guessed in less than half a minute.
2. About 70% of the questions are from arithmetic section in quant, so while preparing for PMET, do concentrate on arithmetic topics much more.
3. Proper time allocation is the need for cracking PMET.
4. PMET Test has relatively easy math sums except probability and permutations which may prove difficult. Generally the paper can be solved with some patience.
5. Reasoning skills can be improved by solving puzzles.
6. Like many other MBA Entrance exams, PMET also follows old GRE books. It will be a good idea to study from these or some old question papers of PMET.

### SPECIFIC TIPS:

1. Learn your mathematical tables up to 30, square roots and cube roots. These assist in minimizing the calculation time required. Memorise all the rules of easy solving techniques, you come across.
2. Be very careful with the units used. There may be a need to do conversions to get an accurate answer, so learn these, especially if the multiple-choice answers are given in a different unit altogether.
3. Improve your speed in calculation:
80% of the time is spent on cracking the concept in any question, 20% is spent on calculation. To ensure speedier calculation, everyday in the morning (for at least five days a week) one must practice calculations like addition, subtraction, multiplication, and division for about 10 minutes. This practice can save a lot of precious time in the actual exam.
4. Study the information correctly and then interpret it accordingly. Find the reason behind each statement and interpret it in the correct way.
5. No assumptions should be made by the examiner himself. Remember the information given is the only information in hand and the examinee is required to base his opinion on the information available only.
6. Read both the factual passage and the sentence completion instruction carefully. Both must be considered in making your choice.
7. Be sure to read all the response choices carefully before choosing one.
8. In questions that ask you to select a valid conclusion, always choose the one conclusion that must definitely follow the information you are given. In questions that ask you to find the invalid alternative, choose the one conclusion that does not definitely follow the information.
9. Pay attention to negative prefixes also, such as non-, un-, or dis-. These can be crucial to specifying the basic facts in the paragraph.
10. "Test-taking" courses or your college instructors may have advised you to avoid any response choices that contain the quantifiers "all" or "none. They will appear in both correct and incorrect response choices.
11. The questions in the assessment will vary in difficulty level, and difficult questions will be mixed in with easier ones throughout the assessment. When you encounter a question that is difficult for you, try drawing diagrams or other schematic notes on the "scratch" paper provided to support and confirm your thought processes. Also, bear in mind that you can stop working on a difficult question temporarily and return to it later.

### EXAMPLES OF QUANT QUESTION TYPES:

1. Question type 1

Anita had to do a multiplication. Instead of taking 35 as one of the multipliers, she took 53. As a result, the product went up by 540. What is the new product?

1. 1050
2. 540
3. 1440
4. 1590
Correct choice is (4) and Correct Answer is 1590
2. Question type 2

A piece of equipment cost a certain factory Rs. 600,000. If it depreciates in value, 15% the first year, 13.5 % the next year, 12% the third year, and so on, what will be its value at the end of 10 years, all percentages applying to the original cost?

1. 2, 00,000
2. 1,05,000
3. 4,05,000
4. 6,50,000

Let the cost of equipment be Rs. 100.

Now the percentages of depreciation at the end of 1st, 2nd, 3rd years are 15, 13.5, 12, which are in A.P., with a = 15 and d = - 1.5.

Hence, percentage of depreciation in the tenth year = a + (10-1) d = 15 + 9 (-1.5) = 1.5

Also total value depreciated in 10 years = 15 + 13.5 + 12 + ... + 1.5 = 82.5

Hence, the value of equipment at the end of 10 years = 100 - 82.5 = 17.5.

The total cost being Rs. 6, 00,000/100 * 17.5 = Rs. 1, 05,000.

### EXAMPLE OF REASONING QUESTION TYPE:

Question: Mr. Doubt fire has a unique way of attempting the question paper having 50 Qs. He starts from question 1 and attempts all questions which are terms of the A. P with a common difference of 3 in the forward direction and 3 in the reverse direction. If he reaches a stage when he cannot attempt any more question he starts in the reverse direction with the first unanswered question. He repeats the same process and when he reaches a stage when he cannot process any further, he reverses his direction again starting with the first unanswered question.

1. Which is the 20th question he answers?
1. 50
2. 48
3. 47
4. 44
2. Which is the last question that he answers if he attempts all the 50 questions?
1. 50
2. 49
3. 48
4. 3
3. How many times does he reverse his direction?
1. 3
2. 4
3. 5
4. 6