CBSE  /  Class 10  /  Maths  /  Pair of Linear Equations in Two Variables

  • 1. 
    If x = a, y = b is the solution of the equation x - y = 2 and x + y = 4, then the value of a and b are respectively

  • 3 and 5
  • 5 and 3
  • 3 and 1
  • -1 and -3

  • 2. 
    Aruna has only Rs 1 and Rs 2 coins with her. If the total number of coins that she has is 50 and the amount of money with her is Rs 75, then the number of Rs 1 and Rs 2 coins are respectively

  • 35 and 15
  • 35 and 20
  • 15 and 35
  • 25 and 25

  • 3. 
    The father’s age is six times his son’s age. Four years hence, the age of the father will be four times his son’s age. The present ages of the son and the father, in years, are respectively

  • 4 and 24
  • 5 and 30
  • 6 and 36
  • 3 and 24

  • 4. 
    If the system of equations 2x + 3y = 7

  • a = 2b
  • b = 2a
  • a + 2b = 0
  • 2a + b = 0

  • 5. 
    The angles of a triangle are x, y and 40°. The difference between the two angles x and y is 30°. The values of x and y are

  • 45°, 75°
  • 50°, 80°
  • 55°, 85°
  • 55°, 95°
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