Question

A sum of 10000 amount of 12000 in 5 yr at a certain rate per cent at compound interest. Find what will be the amount in 20 yr at the same rate of compound interest?

Answer 1

Answer:

90000

Step-by-step explanation:

P=10000,A=12000,T=5yr

SI=A-P=12000-10000=2000

R=SI×100/P×T=2000×100/1000×5=40%

Than, Amount after 20 yr

SI=P×R×T/100=10000×40×20/100=80000

Amount=P+SI=10000+80000=90000Ans....