63. The shifting of a number from one side of an equation to other is called
- (A) Transposition
- (B) Distributivity
- (C) Commutativity
- (D) Associativity
62. A term of an equation can be transposed to the other side by changing
- (A) Its value
- (B) Its sign
- (C) Power of the variable
- (D) None of these
61. Linear equation in one variable has
- (A) Only one variable with any power
- (B) Only one term with a variable
- (C) Only one variable with power 1
- (D) Only constant term
60. A linear equation in one variable has
- (A) Only one solution
- (B) Two solutions
- (C) More than two solutions
- (D) No solution
59. Which of the following is a linear expression?
- (A) x2 + 1
- (B) y + y2
- (C) 4
- (D) 1 + z
58. If a and b are positive integers, then the solution of the equation ax = b has to be always
- (A) Positive
- (B) Negative
- (C) One
- (D) Zero
57. If x = a, then which of the following is not always true for an integer k?
- (A) kx = ak
- (B) x/k = a/k
- (C) x – k = a – k
- (D) x + k = a + k
56. In the equation 3x – 3 = 9, transposing –3 to RHS, we get
- (A) 3x = 9 – 3
- (B) 3x = – 9 + 3
- (C) 3x = 9 + 3
- (D) – 3x = 9 + 3
55. If 9 is added to a number, it becomes 25. This statement in the form of an equation is
- (A) x + 9 = 25
- (B) x – 9 = 25
- (C) 9x = 25
- (D) x/9 = 25
54. In the equation 2x = 4 – x, transposing –x to LHS, we get
- (A) x = 4
- (B) 2x = 4
- (C) 3x = 4
- (D) –x = 4
53. The solution of the equation ax + b = 0 is
- (A) x = a/b
- (B) x = b/a
- (C) x = −a/b
- (D) x = −b/a
52. The value of x for which the expressions 3x – 4 and 2x + 1 become equal is
- (A) –3
- (B) 0
- (C) 5
- (D) 1
51. The value of z when z/1.2 = 1.5 is
- (A) z = 18
- (B) z = 0.18
- (C) z = 1.8
- (D) z = 1.08
50. The solution of the equation 3x – 4 = 1 – 2x is
- (A) 4/5
- (B) 1/15
- (C) 10
- (D) 0
49. The solution of which of the following equations is neither a fraction nor an integer.
- (A) 3x + 2 = 5x + 2
- (B) 4x – 18 = 2
- (C) 4x + 7 = x + 2
- (D) 5x – 8 = x + 4
48. The statement adding 15 to 4 times x is 39, when converted to an equation becomes
- (A) 4x + 15 = 39
- (B) 15x + 4 = 39
- (C) 4x – 15 = 39
- (D) 4x + 15 + 39 = 0