Question
A person invests ₹25,000 in two schemes A and B. In
scheme A, he gets 15% simple interest per annum, and in scheme B, he gets 18% simple interest per annum. After 2 years, the total interest earned is ₹8,100. How much was invested in scheme A?Solution
Let the amount invested in scheme A be ₹x, and the amount invested in scheme B be ₹25,000 - x. The interest from scheme A = (x × 15 × 2) / 100 = 0.3x, The interest from scheme B = ((25,000 - x) × 18 × 2) / 100 = 0.36(25,000 - x). Total interest = ₹8,100, so: 0.3x + 0.36(25,000 - x) = 8,100 0.3x + 9,000 - 0.36x = 8,100, -0.06x = -900, x = 900 / 0.06 = ₹15,000 Amount invested in scheme A = ₹15,000
What will come in place of the question mark (?) in the following series?
32, ?, 30, 46, 28, 44
What will come in place of the question mark (?) in the following series?
112, 123, 144, 169, 190, ?
What will come in place of (?) Question mark in the given number series.
28, 29, 38, 63, 112, 193, ?
53 × 38 + 32 × ∛54872 = ?
45 45.5 47 49.5 53 ?
...- What will come in place of the question mark (?) in the following series?
?, 162, 54, 18, 9, 3 58 83 133 ? 308 433
8 8 12 24 60 ?
84, 97, ?, 162, 214, 279
24, 35, 48, 65, 84, 107
