Question
An investment of Rs. 9,600 at an annual interest rate of
'R' percent for three years yields a simple interest of Rs. 5,760. Calculate the compound interest accrued on a separate investment of Rs. 5,000 for one year at the same interest rate, with the interest being compounded semi-annually.Solution
Simple interest = Principal X (rate/100) X time 5,760 = 9,600 X (R/100) X 3 'R' = (5,760/288) = 20 Effective rate of interest = (20/2) = 10% Effective time = 2 X 1 = 2 terms So, CI = 5000 x (1 + 10/100)2 - 5000 So, CI = 5000 x (121/100)Â - 5000 So, CI = 6050 - 5000 So, CI = Rs 1050
45.45 × 11.67 + 14399.88 ÷ 8.01 + 124.79 = ?
(48/16)2 × 50/50 ÷ 50/800 = ? Â
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
(1177.99 + 226.99 + 94.923) ÷ 24.97% of 59.989 = ?
1459.98 ÷ 40.48 × 12.12 = ? × 3.16
(44.85% of 639.79 + 3/8 of 480.23) × (√63.84 – 19.99% of 499.71) = ?
33.02% of (143.92 + 7 × ?) + 34.03 = 99.88
2550.03 ÷ 74.98 x 49.9 = ? + 20.32
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