Question

find the compound interest on rupees 64000 for 1½ year at 5% p.a, interest being compound half-yearly

Answer 1

Answer:

Answer:

find the compound interest on rupees 64000 for 1½ year at 5% p.a, interest being compound half-yearly

Step-by-step explanation:

Principal P=Rs.4,000. Since the interest is compounded half-yearly the number of conversion periods in 1

1

/2

years are 3. Also the rate of interest per conversion period (6 months) is 10%×

2

1

=5%(0.05 in decimal).

Thus the amount A

n

(in Rs.) is given by

A

n

=P(1+i)

n

A

3

=4,000(1+0.05)

3

=4,630.50

The compound interest is therefore Rs. (4,630.50−4,000)

=Rs.630.50