Question

Directions (128-129): A person invested Rs. 20000 in
a bank which is offering 10% per annum simple interest.
After two years he withdrew the money from the bank
and deposited the total amount in another bank which
gives an interest rate of r% p.a. compounded annually.
After 2 years he received an amount of Rs. 2460 more than
what he had invested in that bank.
128. What is the value of r?
(2) 15%
(3) 5%
(5) None of these
129. If the person had invested Rs. 50,000 instead of 20000
in the bank that offered simple interest, what would
have been his net profit after following the same
procedure as given above?
(1) Rs. 16,800 (2) Rs. 16,150 (3) Rs. 16,350
(4) Rs. 16,000 (5) None of these
130. Ankur invested Rs. X at the rate of 15% per annum
on compound interest for two years and gets total
interest of Rs. 5805. If Ankur invest Rs. (X + 7000)
for another two year at additional rate of 5%, then
what will be compound interest on that investment?​

Answer 1

Answer:

I don't know sorry

better luck next time