The task is to generate the correct answer for a given math problem.

Problem: | x + 3 | – | 4 - x | = | 9 + x | how many solutions will this equation have ?
1

Problem: a 10 % stock yields 8 % . the market value of the stock is :
rs . 125

Problem: on a certain date , pat invested $ 8,000 at x percent annual interest , compounded annually . if the total value of the investment plus interest at the end of 10 years will be $ 32,000 , in how many years total will the total value of the investment plus interest increase to $ 64,000 ?

15