Percentage

PART-B Unit I: Aptitude

PART-B • Unit I: Aptitude & Mental Ability

Percentage (சதவீதம்) • 15 Model Questions

Organized from Easy to Complex with Step-by-Step Mathematical Explanations and LaTeX Formulas

Level 1: Basic Concept, Standard % of Quantity & Equations

Easy
Question 01 Additive Percentage Operation
\(10\%\) of \(5\) and \(5\%\) of \(10\) add up to:
(A) \(0.10\)
(B) \(0.25\)
(C) \(1.0\)  ✓
(D) \(2.5\)
💡 Explanation:
  • Calculate individual percentages: \[10\% \mathrm{of} 5 = \frac{10}{100} \times 5 = \frac{50}{100} = 0.5\] \[5\% \mathrm{of} 10 = \frac{5}{100} \times 10 = \frac{50}{100} = 0.5\]
  • Adding them together: \[0.5 + 0.5 = \mathbf{1.0}\]
Correct Option: (C) 1.0
Question 02 Complementary Percentage (Class Attendance)
There are \(50\) students in a

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