Arunima invests an amount of Rs 10,[email protected]% p.a. to obtain a total amount of Rs 12,710 on simple interest after a certain **. For how many year did she invest the amount to obtain the total sum?
(a) 6 years
(b) 8 years
(c) 5years
(d) 4 years
(e) of these
(a) SI = Rs (12710 – 10250)= Rs 2460