Question
Four number-pairs are given, three of which are alike in
certain manner and one is different. Choose the different number-pair.Solution
The pattern followed here is: The product of the digits of the 1st number is subtracted from the 1st number to get the 2nd number. In option 'A', 1st number = 674, 2 nd number = 674 - (6 X 7 X 4) = 506 In option 'B', 1st number = 496, 2 nd number = 496 - (4 X 9 X 6) = 280 In option 'C', 1st number = 583, 2 nd number = 583 - (5 X 8 X 3) = 463 ≠433 In option 'D', 1st number = 787, 2 nd number = 787 - (7 X 8 X 7) = 395
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 20x + 96 = 0
Equation 2: y² - 18y + 72 = 0
I. 56x² - 99x + 40 = 0
II. 8y² - 30y + 25 = 0
I. 7x² + 52x + 21 = 0
II. 6y² + 7y - 24 = 0
I. 96x² + 52x - 63 = 0
II. 77y² + 155y + 72 = 0
I. x2 + 16x + 63 = 0
II. y2 + 2y - 15 = 0
I. 104x² + 9x - 35 = 0
II. 72y² - 85y + 25 = 0
I. 9x2 + 45x + 26 = 0
II. 7y2 – 59y − 36 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 40x + 300 = 0
Equation 2: y² - 30y + 216 = 0
I.√(3x-17)+ x=15
II. y + 135/y=24
Solve the quadratic equations and determine the relation between x and y:
Equation 1: 21x² - 82x + 80 = 0
Equation 2: 23y² - 132y + 85 = 0
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