Correct Answer - Option 1 : Rs. 250
Given
Amount = Rs. 360
Formula used
Amount = Principal[1 + r%]t
Where r and t is rate and time respectively
Calculation
360 = P[1 + (20/100)]t
⇒ 360 = P(120/100)2
⇒ P = (360 × 100 × 100/120 × 120)
⇒ P = Rs. 250
∴ Principal is Rs. 250