Correct Answer: A
Explanation:
Let the amount invested in the bank that pays 10% interest.
Then the amount invested in the bank that pays 8% interest = 2500 - T
Total Interest = 10% interest on T + 8% interest on (2500 - T) = 230
Total interest = T × + (2500 - T) × = 230
10T + 2500 × 8 - 8T = 230 × 100 by multiplying the equation by 100
2T + 20000 = 23000
2T = 23000 - 20000 = 3000
T = = 1500