Approximation a game Know How ?

Approximation: An approximation is anything that is similar but not exactly equal to something else.

(i) Method of approximation for Addition & subtraction equation: Let us understand this method with an example:

Example. Find the approximate value of ‘x’ upto 3 digit:

4673.483 + 8494.867 – 7526.461 = x – 894.356 + 143.793

(a)2200.698(b) 4860.564 (c) 6500.699 (d) 3886.648

Step 1: Convert the exact values into approximate values.

4673.483  4700, 8494.867 8500, 7526.461 7500, 894.356  900, 143.793  100

Step 2: Put the value approximate values in the equation

4700 + 8500 – 7500 = x – 900 + 100

Step 3: After solving the equation

x = 6500

6500 is the approximate value of x. So, option(c) is very near about 6500.

(ii) Method of approximation for multiplication & Division equation: Let us understand this method with an example:

Example: What is the approximate value nearly to ‘x’?
89487  124 x 19808  594 x 40238  873 = x?
(a)1086888 (b) 1857122(c) 80388 (d) 549534

Step 1: Convert the exact values into approximate values.
89487  89500, 124  125, 19808  19800, 594  600, 
40238 40250, 873  875

Step 2: Put the approximate values in the equation.

Step 3: After solving the equation
x = 1086888.
1086888 is the approximate value of x. So, option (b) is very near about 1086888.

(iii) Method of approximation for square roots & cube roots:

Example: What is the approximate value of ‘x’?

(a)44 (b) 76 (c) 56 (d) 34

Step 1: Put the approximate values near the square root and cube root of an equation.
5342.045329,
5013.036  4913, 5847, 7734  , 10649.876 10648.

Step 2: Put the value approximate values in the equation.

Step 3: After solving the equation
x = 73 + 17-18+4

x = 76.
Note: To get the result very near about the exact answer we should always decrease or increase some quantities to make the balance.

We have discussed concepts of Simplification and Approximation techniques in our article.

Hope this was helpful

All the best!!!

LIC AAO Exam cut off

Dear Candidates

The first shift of LIC AAO Online exam just got over and we are glad to report that overall the exam was easier than expected and well-prepared candidates could easily attempt 120-140 Question(Out of 160). 

Thanks
Wishes all success in your life.

How to minimize negative marking in examination !

Dear Candidates

Today, almost all competitive exams are following the trend of negative marking. Negative marking is the process to filter out non serious candidates, candidates who sit unprepared for the exam and just make wild guesses.

Henceforth, candidates participating in any competitive exam, especially LIC-AAO exam must be careful at the time of answering questions. The negative marks are allocated for each and every incorrect response and the reduction of marks is of 0.25 in LIC-AAO Exam. It will affect your original ranking, so try to answer carefully.