issb mathematics MCQ #256

A sum doubles in 8 years at SI. Rate is:

issb mathematics MCQ #256

  1. Question 1

    Q1. A sum doubles in 8 years at SI. Rate is:

    • A) 10%
    • B) 12.5%
    • C) 15%
    • D) 8%

    Answer: 12.5%

    Explanation: To double, interest equals principal. Rate is 100 over 8, which is 12.5 percent.