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A person invested ₹ 20000 in a mutual fund in year 2018. The value of the mutual fund increased to ₹ 32000 in year 2023. The compound annual growth rate of his investment is:

[Given that (1.6)1/5=1.098](1.6)^{1/5} = 1.098]

Solution

✅ Correct Option: 1

Initial Investment = ₹20,000

Final Value = ₹32,000

Time Period = 2023 - 2018 = 5 years

Given: (1.6)1/5=1.098(1.6)^{1/5} = 1.098


The compound growth formula is:

Final Value = Initial Value × (1+r)n(1 + r)^n

where rr is the growth rate per year and nn is the number of years.


Substituting the values:

32000=20000×(1+r)532000 = 20000 \times (1 + r)^5

3200020000=(1+r)5\dfrac{32000}{20000} = (1 + r)^5

1.6=(1+r)51.6 = (1 + r)^5


Taking the 5th root of both sides:

(1+r)=(1.6)1/5(1 + r) = (1.6)^{1/5}

Using the given value (1.6)1/5=1.098(1.6)^{1/5} = 1.098:

(1+r)=1.098(1 + r) = 1.098

r=1.098−1r = 1.098 - 1

r=0.098r = 0.098


Converting to percentage:

r=0.098×100=9.8%r = 0.098 \times 100 = 9.8\%

Therefore, the compound annual growth rate is 9.8%.

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