Question
Rs. X is invested in a scheme offering 250/4% p.a. for 2
years. The total amount received is Rs. 40,495. If Rs. (X + 3,000) is invested in another scheme offering 15% p.a. simple interest for 3 years, find the interest earned.Solution
X × (250/400) × 2 = 40495 – X Or, (5X/8) + X = 40495 Or, (13X/8) = 40495 Or, X = 40495 × (8/13) So, X = 24,920 Required interest = (X + 3000) × (15/100) × 3 = (24920 + 3000) × (15/100) × 3 = 27,920 × (45/100) = Rs. 12,564 Correct Option: c) Rs. 12.564
I. 35x² - 24x – 35 = 0
II. 72y² - 145y + 72 = 0
- Find the value of p if the quadratic equation x² + px + 36 = 0 has real and equal roots.
I. x² - 19x + 84 = 0
II. y² - 25y + 156 = 0
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 gi...
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 26x + 168 = 0
Equation 2: y² - 23y + 132 = 0
I. x² - 208 = 233
II. y² + 47 - 371 = 0
I. 27x² + 120x + 77 = 0
II. 56y² + 117y + 36 = 0
I: x2 + 31x + 228 = 0
II: y2 + 3y – 108 = 0
I. 2x2 - 5x - 33 =0
II. 2y2 + 5y - 25 = 0
I. x2 + 28x + 96 = 0
II. y2 + 3y - 70 = 0
