Question

Find the rate percent per annum if rs 2000 amount to 2315.25 in an year and half interest being compounded harf yearly

Answer 1

Hey mate here is your answer

Amount (a)=2315.25

principal(p)=2000

Time =1.5 years

let rate be R

since C.I is compounded halfyearly

A=p(1+R/2*100) square * T

2315.25=2000(1+R/100) square *1.5

2315.25/100*2000=1+R/100 whole cube

9261/100*80=1+R/100 cube

21/20 cube = 1+R/100 cube

21/20=1+R/100

R=21/20-1 *100

R=1/20*100

R=5

Hope it helps you

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