Vishwanath
Friday, February 15, 2013
4. A sum was put at simple interest at a certain rate for 3 years. Had it been put at 2% higher rate, it would have fetched Rs. 360 more. Find the sum.
A.400 B.800
C.1200 D.None
Answer:
Let sum = P and original rate = R. Then,
[P * (R+2) * 3 / 100] - [P * R * 3 / 100] = 360
⇔ 7x/20 - 3x/10 = 40 ⇔ x = (40 * 20) = 800.
Hence, the sum is Rs. 800.
Title : Simple Interest Q4
Description : 4. A sum was put at simple interest at a certain rate for 3 years. Had it been put at 2% higher rate, it would have fetched Rs. 360 more. Fi...
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