If the difference between the simple interest and compound interests on some principal amount at 20% for 3 years is Rs. 48, then the principal amount is
Options:
A .  648
B .  600
C .  375
D .  350
E .  None of these
Answer: Option C  - For three years Sum = Difference x (100)3 r2(300 + r) = 48 x (100)3 202 (300 + 20) = Rs. 375
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