IBPS RRB Clerk 2020 Mains Revision Strategy for Numerical Ability

1. Numerical Ability

1. Simplification/Approximation:

• You can expect 5-10 questions from these topics in the exam.
• Good Calculation speed will help save time and increase accuracy.
• To increase your calculation speed learn tables at least till 20, learn squares till 25, and cubes till 15. Also, remember the decimal value of fractions till 1/15.
• Always follow the BODMAS rule while solving questions of Simplification/ Approximation.

2. Number Series: Number series questions are frequently asked in the IBPS RRB Clerk exam. Practice identifying the pattern and finding the missing number in a given series. Regular practice will sharpen your ability to quickly recognize the sequence and solve such questions accurately.

• Missing number series or Wrong number series is important for IBPS RRB Exam 2021.
• You can expect 5 questions from these topics in the exam.
• Some common patterns for Number series are:
  • Square pattern
  • Cube pattern
  • Arithmetic Progression pattern
• Multiplication pattern
  • Prime Number pattern
  • Addition/Subtraction pattern
  • Combination of the above-mentioned pattern

3. Quadratic Equations:

• Practice root comparison of the quadratic equations.
• Learn the basics and tricks to solve these types of questions.
• In such questions, 2 quadratic equations are given and you have to get the roots (say X and Y) of these equations. Then, you need to recognize the relationship between these roots.
• Be ready to face 5 questions on these topics.