1.

A certain sum (in Rs.) is invested at simple interest at y% per annum for \(3\frac{1}{2}\) years. Had it been invested at (y + 4)% per annum at simple interest, it would have fetched Rs. 4,452 more as interst. What is the sum?

A. Rs. 31,800
B. Rs.30,400
C. Rs. 42,800
D. Rs. 42, 400
Answer» B. Rs.30,400


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