KurilooStudy·Practice·Succeed
Aptitude Topics

Percentages

Percentage is a fundamental topic in quantitative aptitude used in profit & loss, interest, and data interpretation. Strong understanding helps solve many exam questions quickly.

Fundamental Principles

Percentage

A number expressed as a fraction of 100.

Increase Percentage

The percentage increase from original value.

Decrease Percentage

The percentage decrease from original value.

Essential Formulation Tips

  • Convert percentages to fractions for quick calculation.
  • Memorize common values like 50%, 25%, 20%, 10%.
  • Use ratio method for comparison problems.
  • Practice regularly to improve speed.

Shortcut Execution Techniques

  • x% of y = y% of x.
  • Use base 100 method for quick calculation.
  • For successive changes: a + b + (ab/100).
  • Convert to decimals when needed.

Contextual Inquiries (FAQs)

Q: How to solve percentage questions quickly?

A: Use fraction conversion, shortcuts, and mental math techniques.

Q: Where are percentages used in exams?

A: Profit & loss, interest, data interpretation, and ratio problems.