find the compound interest on rs. 4000 accrued in three years, when the rate of interest is 8% for first year and 10% per year for second and third year.
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Step-by-step explanation:
for 1st year:
I = PTR/100
= 4000*1*8/100
=rs. 320
for 2nd year:
P= A1= 4000+320
= 4320
I2 = 4320*1*10/100
= rs. 432
for 3rd year:
P= 4320+432 = 4752
I3= 4752*1*10/100
= rs. 475.20
CI = I1+I2+I3
= 320+432+475.20
= Rs. 1227.20 (answer)
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