An initial principal sum of Rs. 8000, invested by Pranav, accrued interest at a compound rate of 20% annually for a period of 2 years. Subsequently, the entire sum, compounded with the interest, was redeployed into an account offering simple interest at an annual rate of 15% for an additional 2 years. Calculate the cumulative interest earnings that Pranav accrued over the comprehensive 4-year period.
ATQ, Amount received after initial 2 years = 8000 × (1.2)2 = Rs. 11520 Amount received after 4 years = 11520 + (11520 × 0.15 × 2) = Rs. 14976 Required interest earned = 14976 – 8000 = Rs. 6976
I. x2 – 18x + 81 = 0
II. y2 – 3y - 28 = 0
I. 4x² - 15x + 9 = 0
II. 20y² - 23y + 6 = 0
I. x2 – 13x + 36 = 0
II. 3y2 – 29y + 18 = 0
I. 3x2 - 16x - 12 = 0
II. 2y2 + 11y + 9 = 0
I. 5x² + 17x + 6 = 0
II. 2y² + 11y + 12 = 0
...I. 8x² + 2x – 3 = 0
II. 6y² + 11y + 4 = 0
I. x + 1 = 3√ 9261
II. y + 1 = √ 324
I. 117x² + 250x + 117 = 0
II. 54y² -123y + 65 = 0
I. x² + 3x – 154 = 0
II. y² + 5y – 126 = 0
I. 4x2 + 9x - 9 = 0
II. 4y2 - 19y + 12 = 0
