38. The difference between the compound interest and simple interest for the amount 5000 in 2 yr is 32. The rate of interest is (1) 5% (2) 8% (3) 10% (4) 12%

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38. (2)( because ) Difference ( =₹ 32, n=2 ) yr and ( quad P=₹ 5000 ) We know that, Difference ( =Pleft(frac{r}{100}right)^{2} ) ( Rightarrow quad 32=5000left(frac{r}{100}right)^{2} Rightarrow frac{32 times 10000}{5000}=r^{2} ) ( Rightarrow quad r^{2}=64 Rightarrow r=8 % )

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