Mathematics · Quantitative Aptitude

Surds and Indices

408 Questions

Surds and indices questions focus on evaluating square roots, cube roots, and fractional exponents. These topics are a core part of the quantitative aptitude section in many competitive exams. Practicing these problems builds speed and accuracy for solving numerical equations.

Square roots evaluationCube roots calculationExponents and powersFractional exponentsSurds multiplication

Surds and Indices Questions

Multiple choice general knowledge math & puzzles
  1. 10

  2. 100

  3. 1000

  4. none of these

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

To solve this question, the user needs to know how to solve equations involving square roots and basic arithmetic. The user must also understand that the square root of a product is equal to the product of the square roots.

We start by isolating the variable in the equation:

$$\sqrt{0.0169x} = 1.3$$

We can then solve for x by squaring both sides of the equation:

$$0.0169x = 1.69$$

$$x = \frac{1.69}{0.0169} = 100$$

Therefore, the answer is option B: 100, since it is the only value that satisfies the equation.

Option A and C are incorrect since they are not the correct value of x that satisfies the equation. Option D is also incorrect since we have found a value of x that satisfies the equation, which is 100.

Multiple choice general knowledge culture
  1. Cube Root

  2. Square Root

  3. Square

  4. Cube

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

Vargamul is a Sanskrit mathematical term derived from 'varga' (square) and 'mul' (root), literally meaning 'square root'. In mathematics, it refers specifically to the square root of a number. This distinguishes it from cube root, square, or cube.

Multiple choice technology programming languages
  1. (abs (sqrt 8))

  2. (modulo (ceiling (sqrt 8)) 2)

  3. (max (floor (sqrt 8)) (round (sqrt 8)))

  4. (min (truncate (sqrt 8)) (abs (sqrt 8)))

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

Evaluating (sqrt 8) gives approximately 2.828. (floor 2.828) is 2.0, while (round 2.828) is 3.0. The max of 2.0 and 3.0 is 3.0. The other options evaluate to 2.828, 1, and 2 respectively, making this choice correct.

Multiple choice technology operating systems
  1. 0

  2. 1

  3. 2

  4. 3

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

In Unix/Linux systems, the root user has both UID (User ID) and GID (Group ID) set to 0. This is a fundamental system convention - the value 0 uniquely identifies the superuser with unrestricted privileges. Other user and group IDs start from 1 upwards for regular users and system accounts.

Multiple choice technology programming languages
  1. 5

  2. 25

  3. 50

  4. 0

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

The SQRT function in SQL calculates the square root of a numeric value. The square root of 25 is 5. Since DUAL is a dummy table in Oracle database, selecting SQRT(25) from it yields a single row containing the value 5.

Multiple choice technology architecture
  1. Var y = Math.sqrt(16);

  2. Var x = Maths.sqrt(16);

  3. Var z = Math.squareroot(16);

  4. Var y = Maths.squareroot(16);

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

The Math object provides sqrt() as the correct method name. Option B and D use 'Maths' which doesn't exist. Option C uses 'squareroot' which is incorrect - the method is 'sqrt'. Option A correctly uses Math.sqrt() with proper capitalization.