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Step-by-step explanation:
SI = ( PTR )/100
A. 475.20 = ( P * 3 * 9 ) / 100
P = ( 475.20*100) / (3*9)
P = 1,760
B. 1,900= ( 13,000*2*R)/100
R = (1900*100)/(13000*2)
R=7.3%
C. 15,680=(56,000*T*7)/100
T= (15,680*100)/ (56000*7)
T= 4 YEARS
D. 12331.20=(P*T*12)/100
P*T=12331.2*100/12
P*T=1,02,760
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