Question

In how many years will a sum of rupees 6400 compounded semi-annually at 5%p.a. amount to rupees 6560

Answer 1

I don't understand the guestion

Answer 2

Answer:

Given Principal, P = Rs 6400 Amount A = Rs 6560 Rate of interest = 5% p. a Hence R = (5/2) per half year Recall A = P[1 + (R/100)]n 6560 = 6400[1 + (5/200)]n 6560 / 6400 = [1 + (1/40)]n (41/ 40) = [41/40]n Comparing both the sides, we get n = 1 Since n = 1, time period should be half year.

Step-by-step explanation: