What is C.I. (in Rs.) on Rs. 7500 for 4 years | vedclass

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(B) The formula for the amount $A$ with varying rates of interest is $A = P 	imes (1 + \frac{R_1}{100})^{n_1} 	imes (1 + \frac{R_2}{100})^{n_2}$.Giv

Vedclass · Accepted Answer

$5568$

Vedclass · Answer

(B) The formula for the amount $A$ with varying rates of interest is $A = P 	imes (1 + \frac{R_1}{100})^{n_1} 	imes (1 + \frac{R_2}{100})^{n_2}$.Given: Principal $P = 7500$,$R_1 = 10 \%$,$n_1 = 2$ years,$R_2 = 20 \%$,$n_2 = 2$ years.First,calculate the total amount $A$:$A = 7500 	imes (1 + \frac{10}{100})^2 	imes (1 + \frac{20}{100})^2$$A = 7500 	imes (1.1)^2 	imes (1.2)^2$$A = 7500 	imes 1.21 	imes 1.44$$A = 7500 	imes 1.7424 = 13068$.Now,calculate the Compound Interest $(C.I.)$:$C.I. = A - P$$C.I. = 13068 - 7500 = 5568$.Thus,the compound interest is $Rs. 5568$.

What is $C.I.$ (in $Rs.$) on $Rs. 7500$ for $4$ years if the rate of interest is $10 \%$ p.a. for the first $2$ years and $20 \%$ p.a. for the next $2$ years?

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