IDNLearn.com makes it easy to find accurate answers to your questions. Our experts are ready to provide prompt and detailed answers to any questions you may have.
Answer:
considering it was simple interest,
We have the formula:
I = PRT ÷ 100
where,
for the first part of the question,
Thus, I = (2160 × 20 × 4)÷ 100
I = Rs. 1728
Now, for the second part,
T = 100×I÷PR
T = 100 × 1728÷(1800 × 12)
T = 8 Years