In how many years, Rs 150 will produce the same interest @ 8% as Rs 800 produce in 3 years @ 412\%?
(i) In how many years will Rs. 950 produce Rs. 399 as simple interest at 7%? (ii) Find the time in which Rs. 1200 will amount to Rs. 1536 at 3.5% per year?
What sum of money lent at 6.5% per annum will produce the same interest in 3 years as Rs. 7500 produce in 6 years at 5% per annum?