Rs.6000 becomes Rs.7200 in 4 years at a certain rate of interest. If the rate becomes 1.5 times of itself. The amount of the same principle in 5 years will be?
Options:
A . Rs.8000
B . Rs.8250
C . Rs.9000
D . Rs.9250
Answer: Option B
S.I on Rs. 600 for 4 Years = Rs (7200 - 600) = Rs 1200 Therefore Rate = (120000/24000) % p.a = 5 % p.a New Rate = (5 x 3/2) % = 15/2 % p.a Required Amount = [6000 + (6000 x 5/100 x 15/2)] = Rs(6000 + 2250) = Rs 8250
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