Question
If * means +, @ means -, # means × and $ means
÷, then what is the value of 16 * 40 @ 56 $ 7 # 2.Solution
16 * 40 @ 56 $ 7 # 2 16 + 40 – 56 ÷ 7 × 2 16 + 40 – 8 × 2 16 + 40 – 16 = 40
I. 8a2 – 22a+ 15 = 0
II. 12b2 - 47b + 40=0
I. 5x² + 17x + 6 = 0
II. 2y² + 11y + 12 = 0
...- Find the value of p if the quadratic equation x² + px + 36 = 0 has real and equal roots.
I. 35x² + 83x + 36 = 0
II. 42y² + 53y + 15 = 0
I. 4x2 + 3√7 x-7 =0
II. 7y2 + 4√7 y-5=0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 21x² - 122x + 160 = 0
Equation 2: 23y² - 159y + ...
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...
I. 6x² + 37x + 45 = 0
II. 3y² - 11y + 6 = 0
I. 2x2 – 19x + 45 = 0
II. y2 – 14y + 48 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 3x² + 6x - 9 = 0
Equation 2: 2y² - 16y + 32 = 0