1. What sum of money lent at 6.5% per annum will produce the same interest in 4 years as ₹ 7500 produce in 6 years at 5% per annum .
2. A what rate percent of simple interest will be interest on ₹ 3,750 be one fifty of itself in 4 years ?
To what will it amount in 15 years?
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Step-by-step explanation:
In first case :
P = Rs. 7500
R = 5 %
T = 6 years
Interest = (P × R × T)/100
= Rs. (7500 × 5 × 6)/100
= Rs. 75 × 5 × 6
= Rs. 2250
In second case :
According to the statement, interest = Rs. 2250
R = 6.5 % P.A
T = 4 years
P = (100 × I)/(R × T)
= Rs. (100 × 2250)/(6.5 × 4)
= Rs. (225000/26) = Rs. (112500/13)
= Rs. 8653.85
Required principal = Rs. 8653.85
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