1 At what rate per annum a sum of Rs 25,000 amounts to Rs 26,250 in 6 months? 2 Shiva lent a sum to Rampyari at the rate of 8% per annum. After 5 years she returned Rs 10,080 to Shiva and cleared the debt. What sum had Shiva lent?

3 How long will a sum of Rs 2500 take to amount to Rs 3250 at the rate of 5% per year?

4 What sum will amount to Rs 1500 at the rate of 5% per annum in 4 years?​