8. a) Mrs. Joshi borrowed a sum of money from a bank at 12% p. a. simple interest. If she paid an interest of Rs 1,920 in 2 years, find the sum borrowed by her. b) A farmer borrowed a sum of Rs 10,000 from a Rural Development Bank at the rate of 7.5% p. a. If he/she paid an amount of Rs 15,250 to clear the debt, how long did he/she use the sum? c) A businessman deposited Rs 60,000 in a Commercial Bank at 4.5% p. a. How long should he deposit the sum to receive an amount of Rs 61,350? 9. a) Mr. Gharti borrowed a loan from Mrs. Gupta at 10% p. a. At the end of 2 years, he paid an amount of Rs 3,600 and cleared the debt. Find the sum borrowed by Mr. Gharti. b) What sum of money amounts to Rs 5,454 at 8% p. a. in 30 months? c) Pradeep lent a sum to Santosh at the rate of 12 1 % p. a. After 4 years, Santosh paid him Rs 7500 and clear the debt, what sum did Pradeep lend to Santosh. pproved by Curriculum Development Centre, Sanothimi, Bhaktapur 83 Vedanta Excel in Mathematics - Book 8​