Correct Answer: Option A
S I = Tk.12480 – Tk.7800 = Tk.4680
Simple Interest = Pnr/100
The rate of interest = (SI ×100)/(Pn)
Then, r = (4680 × 100)/(7800 × 5)
= 12%
The increased rate of interest = 12 + 6 = 18%
SI at 18% = 7800 ×18 × 5/100 = Tk.7020.
Then, the required Amount = 7800 + 7020 = Tk.14820.
Download our app for free and access thousands of MCQ questions with detailed solutions