11 ULof students increased by 80. Find the number of students enfureu last JUUA certain sum of money doubles itself in 6 years. In how many years will it be three times atthe same rate of simple interest?00000 Tatar che cold it for 000000 to buy a new one What

11 ULof students increased by 80. Find the number of students enfureu

1.	11 ULof students increased by 80. Find the number of students enfureu last JUUA certain sum of money doubles itself in 6 years. In how many years will it be three times atthe same rate of simple interest?00000 Tatar che cold it for 000000 to buy a new one What
Answer» Let the sum of money that's principal be x. Time = 6years Amount after 6 years becomes double = 2x Therefor, Simple Interest = Amount - Principal = 2x-x = x Rate per annum = SI×100/ P×T = x×100/x×6 = 100/6 = 50/3 = 16.66 % approx