This document provides problems and instructions for calculating time between dates and interest earned on investments. Students are asked to calculate the number of days between February 3, 2016 and January 17, 2017 using actual and approximate time methods. They are also asked to calculate the interest earned on an investment of P20,000 from June 28, 2019 to March 27, 2020 using banker's rule, approximate time ordinary interest, actual time exact interest, and approximate time exact interest methods. Students are directed to show their work and solutions for each problem.
