Question
A sum of money invested at simple interest amounts to
Rs. 16800 in 2 years and to Rs. 23100 in 9 years. What is the rate of simple interest per annum?Solution
A sum of money invested at simple interest amounts to Rs. 16800 in 2 years and to Rs. 23100 in 9 years. What is the rate of simple interest per annum? ∴ Interst paid in 7 years = 23100 − 16800 = Rs. 6300 Annual Interest = 6300/7 = Rs.900 Sum lent at the begining = 16800 − 900 × 2 = Rs. 15000 Rate of simple Interest = (900/15000) × 100 = 6%
More Percentage Questions
14.99% of 7820 + 5535.25 ÷ 123.001 - ? = 84
18.22 × 11.99 + 154.15 = ?
 (3/5) of 3025 + (18² + 12²) = ? + 22.22% of 1125
5.25 x 4.09 + 3.99 x 9.67 + 6.01 x 14.88 = ?
? = 16.08 + 13.99 × 25.07
20.99 × √4.09 × 30.09 = ? × √195.99 × 15.09
1279.98 ÷ 40.48 × 10.12 = ? × 2.16
30.01 × √1023 + 196 = ? 2 – 287
?% of (150.31 ÷ 14.97 × 50.011) = 319.98
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