Answer:
after 8years
Step-by-step explanation:
Complete question;
In what time will Rs 10000 will yield a compound interest of Rs 2769 at 3% per annum
Using the compound interest formula;
A =P(1+r)^n
Given
P = Rs10000
A = 10000+2769
A = 12769
rate = 3% = 0.03
Substitute and get the time t
12769 = 10000(1+0.03)^n
12769/10000 = 1.03^n
1.2769 = 1.03^n
log 1.2769 = nlog1.03
n = log 1.2769/log 1.03
n = 0.1062/0.01283
n = 8.27
Hence the time is approximately after 8years
Answer:
u will have $309000 at the end of the year
Step-by-step explanation:
1year=12month
25,750x12=309000
I believe it would be 6 or something
Answer: 208.
Step-by-step explanation:
The formula to find the minimum sample size is given by :-
(1)
, where z* = critical z-value (two tailed).
= Standard deviation ( from prior study ) and E = Margin of error.
As per given , we have
Margin of error : E= 0.29
Confidence level = 85%
Significance level =
Using z-table , the critical value (two -tailed)=
As per previous study , Variance =

Now, the required minimum sample size =
[Substitute the values in formula (1)]

[ Round to the next integer]
Hence, the minimum number of third graders that must be included in a sample = 208.