Question
The difference of compound interest on Rs. 800 for 1
year at 20% per annum when interest is being compounded. Half-yearly and quarterlySolution
CI when half yearly P= 800, R=10% t=2 CI= A-P =800[1+10/100] ² -800 =800[11/10] ² -800 = [800×121/100]-800 =968-800=168 now - CI when quarterly r=5%, t=4 CI=800[1+5/100] ⁴ - 800 =800[21/20] ⁴ -800 = [800×21×21×21×21/20×20×20×20]-800 =9261×21/10×20-800 =194481/200-800 =972.40-800 172.40 difference =172.40-168=4.40
I. 8x² + 2x – 3 = 0
II. 6y² + 11y + 4 = 0
Quantity I: The price of rice is decreased by 30%, by how much % the consumption is increase so that the expenditure will decreased by 10%?
Quant...
I. 4 x ² - 4 x + 1 = 0
II. 4 y ² + 4 y + 1 = 0
...I. 27(p + 2) = 2p(24 – p)
II. 2q2 – 25q + 78 = 0
I. 35x² + 83x + 36 = 0
II. 42y² + 53y + 15 = 0
What are the coordinates of the point which divides the line joining (-1, 7) and (4, 3) in the ratio 2:3?
I. 49y2 + 35y + 6 = 0
II. 12x2 + 17 x + 6 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 42x + 392 = 0
Equation 2: y² - 46y + 480 = 0
I. 4x2 + 25x + 36 =0
II. 2y2 + 5y + 3 = 0
I. (x13/5 ÷7) = 5488 ÷ x7/5
II. (y2/3 × y2/3 ) ÷ √4 = (343y)1/3...