SOLUTION: How long in years, months and days (using approximate time) will it take RM800 to accumulate RM1200 at 13% compounded weekly?

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Question 1052499: How long in years, months and days (using approximate time) will it take RM800 to accumulate RM1200 at 13% compounded weekly?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
W is the number of weeks.
1200=800%281%2B%2813%2F52%29%2F100%29%5EW
%281.0025%29%5EW=3%2F2
W=log%281.0025%2C%28%283%2F2%29%29%29
W=log%28%283%2F2%29%29%2Flog%28%281.0025%29%29
W=162.3887
.
.
0.3887%2A7=2.72
162 weeks, 3 days
3 years, 6 weeks, 3 days