Question

at a certain rate of simple intrest rs 4050 amounts to rs 4576.50 in 2 years at the same rate of simple intrest how much would rs 1 lakh amount to in 3 years

Answer 1

si=(p*t*r)/100
si for 2 years = 4576.5-4050=526.5
526.5=(4050*2*r)/100
526.5=81*r
by solving
r= 6.5
by formula si for 3years p= 100000
si=(100000*3*6.5)/100
by solving
si=3000*6.5
si=19500
i think it is right