Question

find the CI on rupees 20000 for 1 and half year at 8% per annum compounded half yearly ​

Answer 1

Answer:

Principal = ₹20000

Rate of Interest = 8% annually

= 8/2% half yearly = 4% half yearly

Time = 1 and half year = 3 half years

C.I. = P[(1+R/100)^n-1] [n = time]

= 20000[(1+4/100)³-1]

= 20000[(1+1/25)³-1)]

= 20000[(26/25)³-1]

= 20000 [17576/15625-1]

= 20000 [17576-15625/15625]

= 20000 × 1951/15625

= 32×1951/25

= 62432/25

= 2497.28

So , compound interest = ₹2497.28