Two equal sums of money are lent at the same time at 9% annum and 8% per annum simple interest respectively. The former is recovered six month earlier than the later and the amount in each cases is Rs. 17680. Find the sum and the times for which they are lent.

Rs. 10,000 2 yrs & 2 1/ years

Rs. 13000, 4 yrs & 4 1/2 years

Rs. 125000, 3 yrs & 3 1/2 years

Rs..14,500, 5 yrs, & 5 1/2 years