Correct Answer - Option 2 : 320
Given:
Sum is Rs. 50,000
Rate of interest is 8% for 2 years
Formula Used:
R = √(D/P) × 100,
Where
R is rate of interest,
D is CI – SI
P is principle
Concept Used:
As the principle is same, then change in final amount is change in Interest
Calculation:
Using the formula,
⇒ 8 = √(D/50,000) × 100
⇒ 8/100 = √(D/50,000)
⇒ 2/25 = √(D/50,000)
Taking square on both sides,
⇒ 2/25 × 2/25 = D/50,000
⇒ D = (2 × 2 × 50,000)/(25 × 25)
⇒ D = 4 × 80
⇒ D = 320
∴ The difference in the amount is Rs. 320.