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प्रश्न
Find the compound interest when principal = Rs 3000, rate = 5% per annum and time = 2 years.
उत्तर
Principal for the first year = Rs 3, 000
Interest for the first year\[ = Rs\left( \frac{3, 000 \times 5 \times 1}{100} \right)\]
= Rs 150
Amount at the end of the first year = Rs 3, 000 + Rs 150
= Rs 3, 150
Principal for the second year = Rs 3, 150
Interest for the second year \[= Rs\left( \frac{3, 150 \times 5 \times 1}{100} \right)\]
= Rs 157 . 50
Amount at the end of the second year = Rs 3, 150 + Rs 157 . 50
= Rs 3307 . 50
∴ Compound interest \[ = Rs\left( 3, 307 . 50 - 3, 000 \right)\]
= Rs 307 . 50
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