at what interest rate per annum will sum of rs 400 became rs 475 in three years
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2
Answer:
6.25%
Step-by-step explanation:
R=100 xl/pxn, R rate, Interest
P=principal, n=no. of yrs
R=100x75 / 400x3=25/4=6.25%
Answered by
0
Principal = Rs.400, Amount = Rs.480
Simple Interest = Rs.(480−400)
=Rs.80
Time = 4 years
Rate in percentage =SI×100P×T
Rate in percentage =80×100400×4=80001600=5%
New rate of interest
=(5+2)=7%
Interest=400×7×4100=112
Hence amount=Rs.(400+112)
=Rs.512
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