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Mathematics NULL Medium
Question

A sum at 20% CI for 2 years earns Rs.482 more if interest is payable half-yearly instead of yearly. Find the sum.

A
Rs.4000
B
Rs.1000
C
Rs.1250
D
Rs.2000
✓ Official correct answer

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A
Rs.4000
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B
Rs.1000
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C
Rs.1250
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D
Rs.2000
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Explanation

Difference factor = (1.1)⁴ − (1.2)² = 0.0241. Then 0.0241P = 482 ⇒ P = 20000, not the marked Rs.2000.

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