Question
Equation 1: 2x2 - 21x + 54 = 0
Equation 2: 4y2 - 23y + 15 = 0 Difference between the roots of equation 1 is approximately how much% more or less than the sum of roots of equation 2 ?Solution
We know that, Difference = (√(b2 – 4ac))/a = √(441 – 432)/2 = 3/2 = 24/16 (Multiplying Numerator and Denominator by 8) Sum = -b/a = 23/4 = 92/16 (Multiplying Numerator and Denominator by 4) Required % = (92 – 24)/92 × 100 = 73.91%
More Quadratic equation Questions
[√441 ÷7] × 40% of ? = 500 – 12.5% of 400
√2025 + √1024 - √1296 = 20% of ?
Find the value of 5342.5 +543.45+54.345 +5.4345+0.54345.
- What will come in the place of question mark (?) in the given expression?
(√1089 + 47) X 4.5 = ? - √256 X 10 63 × 4 = ?2 – 1620 ÷ 5
40% are the passing marks. A student gets 250 marks yet fails by 38 marks. What is the maximum marks?
∛857375 + ∛91125 = ? + √6889
- What will come in place of the question mark (?) in the following questions?
0.5×120+25=? √3598 × √(230 ) ÷ √102= ?
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