Question : A sum of money at simple interest amounts to Rs. 5704 in 3 years and to Rs. 6072 in 4 years. The sum is:
Option 1: Rs. 5020
Option 2: Rs. 4800
Option 3: Rs. 4600
Option 4: Rs. 4980
Correct Answer: Rs. 4600
Solution :
Simple interest in 1 year = 6072 – 5704 = Rs. 368
Simple interest in 3 years = 368 × 3 = Rs. 1104
We know, Amount = Principal + Simple Interest
⇒ 5704 = Principal + 1104
$\therefore$ Principal = Rs. 4600
Hence, the correct answer is Rs. 4600.
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