A) Rs. 600
B) Rs. 540
C) Rs. 625
D) Rs. 560
Correct Answer: C
Solution :
Interest on Rs. 650 for 1 yr \[=9+6=15\]= Rs.26 So, \[r=\frac{26}{650}\times 100\] r = 4% per annum \[P=\frac{A}{{{\left[ 1+\frac{r}{100} \right]}^{t}}}=\frac{650}{{{\left[ 1+\frac{4}{100} \right]}^{1}}}\] \[\frac{{{(1.5)}^{3}}+{{(4.7)}^{3}}+{{(3.8)}^{3}}-3\times 1.5\times 4.7\times 3.8}{{{(1.5)}^{2}}+{{(4.7)}^{2}}+{{(3.8)}^{2}}-1.5\times 4.7-4.7\times 3.8-3.8\times 1.5}\]=Rs. 625You need to login to perform this action.
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