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प्रश्न
Choose the most appropriate option.
The difference between simple interest and compound interest at the same rate for rupees 5,000 for two years is rupees 98. The rate of interest is:
पर्याय
12%
14%
`10 1/2%`
10%
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उत्तर
14%
Explanation:
Here,
P = 5000
T = 2 years
Difference between S.I. and C.I. = 98
According to formulas
The difference for 2 years between S.I. and C.I.`="Pr"^2/(100)^2`
`98=(5000xx"r"^2)/(100)^2`
r2 = 196
∴ r = 14
∴ r = 14%
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