At the rate of (17/2)% p.a. simple interest, a sum of Tk. 4800 will earn how much interest in 2 years 3 months?

Question: At the rate of (17/2)% p.a. simple interest, a sum of Tk. 4800 will earn how much interest in 2 years 3 months?

Solution:
Time, n = 2 years 3 months = 2(1/4) years = 9/4 years.

We know,
I = Pnr
= 4800 × (9/4) × (17/2) × (1/100)
= Tk. 918