If we reflected our time in Form 2 in the secondary schools ..
we must have met how to compute interest from a sum of money deposited in a bank.
the formula was Interest = principal * time * rate
the time is in years.
therefore if i gave you a month .. then you must convert time to be (1/12)
2) 99.9 percent of my degree students in this section forgot the above magic formula in their way to get a recurrence formula in Question 4 of the exam paper.
So sad/ so silly of you. U missed 20 marks ..