SSC CGL Algebra Practice Test 6
15 fresh SSC CGL algebra questions on equations, identities, roots, and expressions.
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SSC CGL Algebra Practice Test 6
15 fresh SSC CGL algebra questions on equations, identities, roots, and expressions.
Preview all 10 questions in SSC CGL Algebra Practice Test 6 (no login required)
- Linear Equation
1. Solve: 5x + 3 = 28
- A. 4
- B. 5 (Correct)
- C. 6
- D. 7
Explanation: 5x = 25.
- Linear Equation
2. Solve: 2x - 9 = 7
- A. 6
- B. 7
- C. 8 (Correct)
- D. 9
Explanation: 2x = 16.
- Identity
3. Value of (a + b)^2 - 2ab is:
- A. a^2 + b^2 (Correct)
- B. a^2 - b^2
- C. 2a + 2b
- D. ab
Explanation: Expand and simplify.
- Simultaneous Equation
4. If x + y = 12 and x - y = 4, x =
- A. 6
- B. 7
- C. 8 (Correct)
- D. 9
Explanation: Add the equations.
- Expression
5. If x = 4, then x^2 + 3x = ?
- A. 24
- B. 26
- C. 28 (Correct)
- D. 30
Explanation: 16 + 12 = 28.
- Roots
6. For x^2 - 7x + 10 = 0, sum of roots is:
- A. 5
- B. 6
- C. 7 (Correct)
- D. 10
Explanation: For x^2 - 7x + 10, sum of roots is 7.
- Polynomial
7. Degree of 4x^4 + 3x - 2 is:
- A. 2
- B. 3
- C. 4 (Correct)
- D. 5
Explanation: Highest power is 4.
- Linear Equation
8. Solve: 7x = 56
- A. 6
- B. 7
- C. 8 (Correct)
- D. 9
Explanation: x = 56/7.
- Quadratic
9. Roots of x^2 - 6x + 8 = 0 are:
- A. 2 and 4 (Correct)
- B. 3 and 3
- C. -2 and -4
- D. 1 and 8
Explanation: Factorization gives (x-2)(x-4).
- Expression
10. If x = 3 and y = 2, then 3x^2 - 2y =
- A. 21
- B. 23 (Correct)
- C. 25
- D. 27
Explanation: 3 x 9 - 4 = 23.