Question

Find the principal when :-
i)final amount is 4500 at 20% per annum for 5 years.
ii)final amount is 2420 at 4% per annum for 5/2 years.​

Answer 1

Answer:

Answer is shown in the above picture...

Thank you...

Answer 2

Answer:

The Principals are 2250 and 2200

Step-by-step explanation:

i) amount=SI+principal

4500=p*20*5/100+p

4500=2p

p=4500/2

p=2250

ii) amount=SI+principal

2420=p*4*(5/2)/100+p

2420=10p/100+p

2420=10p+100p/100

2420=110p/100

2420*100/110=p

p=2200

(This is my original work no copy paste)