Simplification tricks

Simplification Technique through BODMAS Rule – learndunia

Bank Quantitative Aptitude Study Material

Simplification is the easy topic. Simplification play an important role in Banking,SSC and other competitive examination. In IBPS PO/Clerk, SBI PO/Clerk, RBI it play an important role, in an Aptitude Section there are 10-15 questions will be asked from Simplification and Approximation. Here you will find best simplification technique through BODMAS rule.

 

BODMAS Rules

BODMAS RULES

 

The BODMAS acronym is for:

  • Brackets (parts of a calculation inside brackets always come first) (()).
  • Orders (numbers involving powers or square roots).
  • Division (/).
  • Multiplication (*).
  • Addition (+).
  • Subtraction (-).

Here is an example, to help you understand the BODMAS rule concept.

EXAMPLE

What will come in place of question mark (?) in the following question?

 Q1. (1280 + 3360) / ? = 330

  1. 14.
  2. 18.
  3. 25.
  4. 21.

Ans (1)

According to the BODMAS, first we need to solve the Brackets.

Here are the steps to illuminate this process.

(1280 + 3360) / ? = 330

4640/ ? = 330

4640/330 = 14

 Q2. 78 – [5 + 3 of (25 – 2 × 10)]

  1. 56
  2. 59
  3. 62
  4. 58

Ans (4)

Here are the steps to illuminate this process.

78 – [5 + 3 of (25 – 2 × 10)]

= 78 – [5 + 3 of (25 – 20)], (Simplifying ‘multiplication’ 2 × 10 = 20)

= 78 – [5 + 3 of 5], (Simplifying ‘subtraction’ 25 – 20 = 5)

= 78 – [5 + 3 × 5], (Simplifying ‘of’)

= 78 – [5 + 15], (Simplifying ‘multiplication’ 3 × 5 = 15)

= 78 – 20, (Simplifying ‘addition’ 5 + 15 = 20)

= 58, (Simplifying ‘subtraction’ 78 – 20 = 58)

=58.

MULTIPLICATION TECHNIQUES – Learn Dunia

Types of Numbers

  1.  Natural Numbers:  Counting Numbers are called Natural Numbers i.e 1,2,3…. are Natural Numbers.
  2. Whole Numbers:  All Counting Numbers together with zero (0) are called Whole Numbers.
  3. Integer Numbers: When Negative value of Natural Numbers are included with the whole Number known as Integer Numbers i.e- …….-3,-2,-1,0,+1,+2,+3……
  4. Even Numbers: Numbers which is divisible by 2 known as Even Numbers. i.e- 0,2,4,6,8… are Even Numbers.
  5. Odd Numbers:  Numbers which is not divisible by 2 known as Odd Numbers . i.e- 1,3,5,7… are Odd Numbers.
  6. Prime Numbers: Numbers which is divisible by itself and by 1 (one ) known as Prime Numbers.
  7. Composite Numbers:  Numbers which are not Prime Numbers Known as Composite Numbers.

Important Algebraic Formulas:

BODMAS Rule

 Simplify the following questions-

  1. 6 x .6 x. 6 ?

 

 

 

3.

 

4. A Board 7 ft. 9 inch long is divided into 3 equal parts. what is the length of each equal parts?

5. 7500 + (1250 /50) = ?

6. (1/11)1111011 = ?

7. 

8. The value of 0.2 + 0.2 – 0.2 / 0.2 x (0.2 x 0.2) is ?

9. The value of 5.8 x 2.5 + .6 x 6.75 + 139.25 is ?

10.  The value of 152.416 / 18.72 / 6.28 is

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