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5+3(9*8+5-2)2 – 6=………. These types of questions are something that make our head act like a kitchen chimney. All the smoke will get out but no answer will appear all of sudden. Well these kinds of questions are an investable part of the banking examinations. These kinds of questions are pampered by recruiters with the name the quantitative aptitude for banking examination. Through this article we will be discussing how we can simplify the quantitative aptitude question with some tips and tricks.
Is Quantitative aptitude = Mathematics?
This is one of the major doubts that every aspirant faces in their preparation. When the aspirant prepares for the quantitative aptitudes, they feel it like you doing your high school mathematics but still the bank exam recruiters nor the bank exam mentors won’t call it by the name mathematics, its often called by the name quantitative aptitude. Why?
Because mathematics is a branch of study that deals specifically with logic called mathematics logic. The one logic under the mathematical logic is the real common logic. Don’t confuse that both are the same.
I have 10 rupees with me. If I give you 5 rupees to you, It’s obvious that I will have only 5 rupees with me then. It’s called the real common logic. But the existence of the complex number ie, i= square root of -1 is just a mathematical logic not a real logic. In quantitative aptitude we are dealing with only real common logic. And that is the realisation that makes the question dealt in a simple way.
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What all can be included in the quantitative aptitude?
The topics that we will encounter with the quantity in day to day life will be there in the quantitative aptitude. Which means it does not include integral calculus or differentiation. The topics will be like:
- Age questions
- Cost and profit questions
- Work and time questions
- Interest and amount
- Percentage
- Simple addition subtraction division and multiplication
- Volume and area questions. Etc
The Simple Tricks and Tips
There are usual ways in which we can solve these questions in the examination. The usual way is that we have already studied in the high school classes. It will take more time and more and more mathematical applications. In competitive exams the speed in which you solve the questions will be accounted for letting you in or letting you out. So some of the simple tricks and tips you can employ in the exam hall is:
The BODMAS
This is a basic concept of mathematics that how you should deal with a complex confusing arithmetical calculation. It gives you the priority of operations that you should give while solving the question. BODMAS = Bracket off- Division -Multiplication – Addition – Subtraction. The order of operations should be like this. For example,
5* (3+2)- 6*(1+2) = 7 { first (3+2) =5 & (1+2)=3; second 5*5=25 & 6*3=18; third 25-18= 7}
You can simplify any arithmetic calculation using the BODMAS method. If you don’t use the method probably the answer will be wrong.
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The Reverse Method
Most of the cases in our school time we are provided with a question and we have to answer it through our calculations. But in a competitive examination you are provided with a question and provided with some answers also. Only one of the answers will be right and rest will be wrong. You have to find the correct answer. This is one of the methodologies used by the recruiters to confuse you. You can utilise it for simplification purposes. For a change from school time here you can employ the reverse method of going to the question from the answer. Substitute the answers for knowing whether you get the question as it is. If you get it you are at the right answer. For example,
5 years before my age was 15 more than my son’s age. Now my age is twice that of my son. What’s my age?
- A) 15 B) 30 C) 40 D) 25
Here you can solve these questions with the algebraic method of taking an arbitrary x. but we can also find by substituting the options as answers.
Case A: My age 15. Five years before 10. My son’s age then 10-15 = doesn’t make any sense.
Case B: My age 30. Five years before 25. My son’s age then 25-15 = 10. Now my son’s age 15. 15*2=30 my age itself. So, B is the answer.
Make it faster in your mind than using complex algebraic calculation.
Eliminate the Unfeasible Options
This cannot be employed every time. If there are any unfeasible options there, the answers try to eliminate it, making your solving simpler and faster. For example,
Two cuboid tanks A and B are there. The A has full of water and it is 512 m3. The whole water in tank A has poured into tank B and tank B has 49.8% space left with it. What is the side length of the tank B?
- A) 5 m B) 6m C) 20m D) 10m
Here we can simply use unfeasible options. The primary inference we get from the question is tank B is bigger than tank A. the side length of tank A is cube root of 512= 8m.
Option A) and option B) get cancelled since it is less than 8.
When we look into option D) 20 the volume will be 20*20*20= 8000 which is obviously 10 times more than the volume of tank A. the question provided the tank B is just 49.8% bigger than tank A. So, the answer is option D) 10m
Click Here for the Tips and Tricks for Solving Seating Arrangement Questions
The unit method
Make every possible parameter to unit range so that you can calculate the answer more quickly. For example,
50% of the 60% of a number is what percentage to the original number?
- A) 28 B) 43 C) 30 D) 32.8
This can be solved easily when we convert into unit range. Let the number be 100.
60% of 100 = 60
50% of 60 = 30
30 is 30% of 100. So, the answer is 30%
We can solve that much easily when you convert into unit range.
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Conclusion
It is the intelligence to know what to apply where. It also comes with a routine practice. Entri quantitative aptitude will provide you with more these kinds of simplification process and entri makes you a master by providing you with a lot of mock tests for quantitative aptitude. So, keep studying, keep winning.
