Practice Quadratic equation Questions and Answers

• Quantity I: The cash price of a notebook is Rs. 100 but is can also be purchased on 11 monthly equal instalments of Rs. 10 each. Find rate of S.I.? Quantit...
• Quantity I: A vessel contains a mixture of milk and water in the ratio of 7 : 5. If 9 litre of mixture is sold and replaced by same amount of water then th...
• I. 12x2 - 55x + 63 = 0 II. 10y2 - 47y + 55 = 0  
• I. 8y2 - 2y - 21 = 0 II. 2x2 + x - 6 = 0
• I. 6y2 - 17y + 12 = 0 II. 15x2 - 38x + 24 = 0
• I. 63x2  + 148x + 77 = 0 II. 21y2  + 89y + 88 = 0
• I. 2x² - 7x + 3 = 0 II. 8y² - 14y + 5 = 0
• I. 2x² + 15 x - 27 = 0 II. 3 y² + 25 y - 18 = 0
• I. 6x² - 13 x + 6 = 0 II. 15 y² + 11 y - 12 = 0
• I. 2y2 + 11y + 15 = 0 II. 3x2 + 4x - 4= 0
• Solve the quadratic equations and determine the relation between x and y: Equation 1:  3x2 + 6√7x - 315 = 0          Equation 2: 2y2 - 13√7y + ...
• I. 3x2 + 3x - 60 = 0          II. 2y2 - 7y + 5 = 0 
• I. 9x2 + 45x + 26 = 0 II. 7y2 – 59y − 36 = 0
• I. 8x – 3y = 85 II. 4x – 5y = 67
• I. x − √2401 = 0 II. y2 − 2401 = 0
• I. 2x2 + 13x + 21 = 0 II. 3y2 + 34y + 63 = 0
• I. 12x2 + 22x + 8 = 0 II. 4y2 - y − 3 = 0
• I. x2 – 7x + 12 = 0 II. y2 – 7y + 10 = 0
• I. 10x2 + 33x + 9 = 0 II. 2y2 + 13y + 21 = 0
• I. 6x2 + 19x + 10 = 0 II. y2 + 10y + 25 = 0
• I. x2 + 91 = 20x II. 10y2 - 29y + 21 = 0
• I. 5x + 2y = 31 II. 3x + 7y = 36
• I. 6x² + 77x + 121 = 0 II. y² + 9y - 22 = 0
• I. x² + 4x + 4 = 0 II. y² - 8y + 16 = 0
• I. x² - (16)2 = 0 II. 2y - 14 = 0
• I. x² - 19x + 84 = 0 II. y² - 25y + 156 = 0
• I. x2 – 13x + 36 = 0 II. 3y2 – 29y + 18 = 0
• I. 2x2 – 5x - 12 = 0 II. y2 – 11y + 30 = 0
• I. 3x2 – 16x + 21 = 0 II. y2 – 13y + 42 = 0
• I. x2 – 18x + 81 = 0 II. y2 – 3y - 28 = 0
• I. x2 – 9x + 18 = 0      II. y2 – 5y + 6 = 0       
•  If 4x = 40, 3y = 33, what is the value of 6x + 4y?
• How many values of x and y satisfy the equation 2x + 4y = 8 & 3x + 6y = 10.
• The equation q2 - 17x + C = 0, has two roots ‘x’ and ‘y’ such that (x – y) = 7. Find an equation which is equal to thrice of the given equation. ...
• The equation x2 – px – 60 = 0, has two roots ‘a’ and ‘b’ such that (a – b) = 17 and p > 0. If a series starts with ‘p’ such that the cons...
• (i) 2x² – 12x + 16 = 0 (ii) 2y² – 20y + 48 = 0
• (i) x² – 3x – 40 = 0 (ii) y² + 11y + 30 = 0
• (i) 2x² – x – 3 = 0 (ii) 2y² – 6y + 4 = 0
• (i) 2x² + 14x - 16 = 0 (ii) y² – y – 12 = 0
• (i) 2x² – 9x + 10 = 0 (ii) 4y² – 12y + 9 = 0