Question
If 4 kg of metal of which 1/3rd is zinc and
the rest is copper, be mixed with 5kg of metal, of which 1/6 is zinc and the rest is copper, then what will be the ratio of zinc to copper in the mixture?Solution
In 4 kg of metal Zinc Copper 4 ×1/3 4 ×2/3 4/3 8/3 In 5 kg of metal Zinc Copper 5 ×1/6 5 ×5/6 Now, new ratio = (4/3+ 5/6)/(8/3+ 25/6) = 13:41
l). 3p + 2q = 27
ll). 4p - 3q = 2
- Find the value of p if the quadratic equation x² + px + 36 = 0 has real and equal roots.
What will be the product of smaller roots of both equations.Â
In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between 'p' and 'q' and choose...
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 4x² - 12x + 9 = 0
Equation 2: 2y² + 8y + 6 = 0
I. 63x2 + 148x + 77 = 0
II. 21y2 + 89y + 88 = 0
I. 8y2 - 2y - 21 = 0
II. 2x2 + x - 6 = 0
I. x2 – 13x + 36 = 0
II. 3y2 – 29y + 18 = 0
If ‘y1’ and ‘y2’ are the roots of quadratic equation 5y2 – 25y + 15 = 0, then find the quadratic equation whose roots are ‘3y1�...
I. 144x² - 163x - 65 = 0
II. 91y² - 128y -48 = 0
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