A sum of money was lentin two parts in the ratio 4 : 5 for 4 years and 5 years respectively, both at the rate of 8% per annum simple interest. If the difference between the interests earned from the twoparts is ₹ 4680, then what was the total sum lent(in ₹)?

A

538500

B

42120

C

46800

D

65000