Correct option is A
Given
Principal (P) = ₹2,40,000
Rate of Bank A = 3.5%
Rate of Bank B = 7.5%
Time (T) = 4 years
Formula Used
Difference in SI =
Solution
Difference in interest rates = 7.5% - 3.5% = 4%
Difference in Simple Interest =
Difference = 2400 × 16
Difference = 38400
Final Answer
So the correct answer is (a)