Answer: Rs. 1,100
Explanation:
Compound interest calculation at three years:
2,200 = Amount * (1 + r) ³
Compound interest at six years.
4,400 = Amount * (1 + r) ⁶
Divide them to eliminate variables:
4,400/ 2,200 = (Amount * (1 + r) ⁶) / (Amount * (1 + r) ³)
2 = (Amount * (1 + r) ³)
If (Amount * (1 + r) ³ is 2 then Amount at 3 years is:
2,200 = Amount * 2
Amount = 2,200 / 2
= Rs. 1,100
