Question

h What amount of money should Mohan invest in
a bank in order to get 1323 in 2 years at 5%
compounded annually?
Find the sum which amounts to
at 4% compound interest.
1352 in 2 years​

Answer 1

Answer:

A)1200

B)1250

Step-by-step explanation:

As we do not know the principal(amount to be invested)we let it as P.

So ,Let Principal-P

Rate-5% p.a.

Time -2 years

Amount =P(1+R/100) with power as T

=P(1+5/100) with power 2

=P(1+1/20)with power 2

=P(21/20) with power 2

=441P/400

1323(Given amount)=441P/400

1323×400= 441P

529200/441=P

1200=P

So,Principal(Amount he should invest)=1200 rupees

B)

Again we will let principal as P.

Let Principal-P

Rate-4%

Time-2 yrs.

Amount=P(1+R/100) with power T

=P(1+4/100)/with power 2

=P(1+1/25)with power 2

=P(26/25)with power 2

=676P/625

1352(Given amount)=676P/625

1352×625=676P

845000=676P

1250=P

So,Principal=1250rupees