Question 1185513
.


        I agree with @CPhill on how he sets up the equation,
        but his calculations in his post to find R are not accurate.


        I came to provide correct calculations.

        So, I placed here only part 3 of the @CPhill solution 

        with my corrected/updated calculations.



<pre>
**3. Solving for R:**

Now we have the equation:

187,481.25 = {R * [1 - (1.05)^-8] / 0.05} / (1.05)^9

We need to solve for R.  Here's the step-by-step process:

1. Simplify the annuity part: [1 - (1.05)^-8] / 0.05 = 6.463212759  (compare with the value of 6.7665 by @CPhill)
2. Simplify the discounting part: (1.05)^9 = 1.551328216
3. R = (187481.25 * 1.551328216) / 6.463212759 = 45,000 pesos


Therefore, the value of R is approximately 45,000 pesos.
</pre>

Solved/recalculated correctly.


Compare my 45000 pesos with the @CPhill's 43000 pesos. 
I think, in Finance, such an error/(a discrepancy) is not allowed.



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Artificial intelligence, which can not produce correctly simple arithmetical calculations ?


&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;It is just something unprecedented.