If the difference between CI and SI on a certain sum for three years is Rs 9507.176 at 7% per annum. Find the principal (in Rs.)

If the difference between CI and SI on a certain sum for three y ears is Rs 9507.176 at 7% per annum. Find the principal (in Rs.)

(a) 416000

(b) 632000

(c) 630026

(d) 712006

Sol: