If rs.1000 amounts to rs.2197 at compound intrest in 3 years,then rate

1.	If rs.1000 amounts to rs.2197 at compound intrest in 3 years,then rate of intrest oer annum is
Answer» Given, 1)P=1000 2)A=2197 3)n=3years 4)it is COMPOUNDED annually By USING FORMULA, A=P[1+r/100]^n 2197=1000[1+r/100]^3 2197/1000=[1+r/100]^3 [13/10]^3=[1+r/100]^3 13/10=1+r/100 13/10-1/1=r/100 3/10=r/100 3×100/10=r r=300/10 r=30%p.a.

If rs.1000 amounts to rs.2197 at compound intrest in 3 years,then rate of intrest oer annum is

Answer»

Given,

1)P=1000

2)A=2197

3)n=3years

4)it is COMPOUNDED annually

By USING FORMULA,

A=P[1+r/100]^n

2197=1000[1+r/100]^3

2197/1000=[1+r/100]^3

[13/10]^3=[1+r/100]^3

13/10=1+r/100

13/10-1/1=r/100

3/10=r/100

3×100/10=r

r=300/10

r=30%p.a.

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If rs.1000 amounts to rs.2197 at compound intrest in 3 years,then rate of intrest oer annum is

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