Quantitative Aptitude

Fractions and Percentages

307 Questions

Fractions and percentages form the foundation of quantitative aptitude, requiring the conversion of values between different formats. Questions cover percentage increases, fractional equivalents, and basic arithmetic manipulations. These concepts are heavily tested in SSC, banking, and railway competitive exams.

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Fractions and Percentages Questions

Multiple choice

If 10 % of M = 20 % of N then M : N =?

  1. 10 : 1

  2. 5 : 1

  3. 1 : 2

  4. 2 : 1

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Given 0.10 * M = 0.20 * N, dividing both sides by 0.10 gives M = 2 * N. Therefore, M/N = 2/1, or M:N = 2:1.

Multiple choice

Percentage of carbon in steel ranges from ……………..

  1. 0.1 to 1.5.

  2. 2.5 to 4.5

  3. 4.1 to 5.5

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Steel is an alloy of iron and carbon. The carbon content in steel typically ranges from 0.02% to about 2.1% by weight, making 0.1 to 1.5 the most accurate range provided.

Multiple choice vedic methods of multiplication history of mathematics maths

If $60$% of $\cfrac{3}{5}$ of a number is $36$, then the number is:

  1. $80$
  2. $100$
  3. $75$
  4. $90$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let the number be $x$. Then
$60$% of $\cfrac{3}{5}$ of $x=36$
$\Rightarrow$ $\cfrac{60}{100}\times \cfrac{3}{5}\times x=36$
$\Rightarrow$ $x=(36\times \cfrac{25}{9})=100$
$\therefore$ Required number $=100$