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prohojiy [21]
3 years ago
14

Suppose Mr. Pink is 28 years old right now and puts away $1,800 per quarter in an account that returns 6% interest. a.) How much

will be in the account when he turns 68? b.)What is his total contribution to the account?
Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
5 0

Answer: (a) When he turns 68 , the account will have = $1,179,415.39

(b) $ 288,000

Step-by-step explanation:

Formula: Future value of annuity =P[\dfrac{(1+r)^n-1}{r}], where P+ periodic payment, r = rate of interest per period, n= number of periods.

As per given, we have

P= $1800

rate of interest = 6% = 0.06

(a) n= 68-28 = 40

Rate per period : r= \dfrac{0.06}{4}=0.015  

Number of periods: n = 4x 40 =160

Now, Future value of amount when Mr. Pink turns 28 years = 1800(\dfrac{(1+0.015)^{160}-1}{0.015})

=1800(\dfrac{10.8284615777-1}{0.015})\\\\=1800\times\dfrac{9.8284615777}{0.015}\\\\\approx\$1179415.39

Hence, when he turns 68 , the account will have = $1,179,415.39

(b) Total contribution = P × n

=1800 × 160

=$ 288,000

Hence, Total contribution =$ 288,000

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