poonam gave rs 30000 as a loan to her neighbour at 10%p a compounded semiannualy (half yearly) later on she - Maths - Comparing Quantities

Question

poonam gave rs 30000 as a loan to her neighbour at 10%p a
compounded semiannualy (half yearly) later on she realised that her
neighbour was a very honest person but a poor person so, at the end
of 1 and half years,she decided to charge interest at 10% annually
only how mush concession she had given for her honesty? comment on
the values involved

Neha Sethi · Accepted Answer

Dear student
P=Rs30000T=1 5 yearR=10% p a
 compunded half yearly
So, A=P1+R21003T=300001+51003=30000×105100×105100×105100=34728
75C I=A-P=Rs34728 75-30000=Rs4728 75andP=Rs30000T=1
5 yearR=10% p a
Firstly, the amount for 1 year has to calculatedA=P1+R100T=300001+101001=30000×110100=33000By taking Rs33000 as principal, the SI for the next 12 year will be calculated asS
I=PRT100=33000×10×12100=1650Interest for the first year=Rs33000-30000=Rs3000And interest for the next 12 year=Rs1650Total C
I=Rs3000+1650=Rs4650So,Conession Percent=Rs4728
75-46504650×100=1 69%
Regards