Answer:
5%
Explanation:
The applicable formula is A = P( 1 + r) ^ n
where A= amount: P is the principal, r, interest rate, n time
In this case,
A = principal + interest = Rs 410 { Rs 4000 + Rs410}
P= Rs 4000
r= ?
n= 2
r is?
4410 = 4000(1 + r) ^2
(1 + i)^ 2 = 4410/4000
(1 + i)^ 2 = 1.1025
1 + i = √1.1025
1 + i = 1.05
i = 1.05 - 1
i = 0.05
0.05 × 100 = 5%
You invest $250/mo. over 12 months that equals $3,000 invested per year.
$250*12=$3,000/per year invested
$3,000 per year for 20 years equals $60,000 invested.
$3,000*20=$60,000 invested
8% of $60,000 is $4,800/per year.
0.08*$60,000=$4,800
$4,800 per year for 20 years equals $96,000 dollars earned on investments over 20 years.
Answer:
c. 10.17%
Explanation:
we can use the future value formula:
future value = present value x (1 + r)ⁿ
- future value = $19,600,000
- present value = $8,200,000
- n = 9
$19,600,000 = $8,200,000 x (1 + r)⁹
$19,600,000 / $8,200,000 = (1 + r)⁹
(1 + r)⁹ = 2.390243902
⁹√(1 + r)⁹ = ⁹√2.390243902⁹√
1 + r = 1.101663943
r = 1.101663943 - 1 = 0.101663943 = 10.17%
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