Question

at what rate percent per annum will 64000 becomes 68921 in 3 by 2 years interest being compounded half yearly

Answer 1

Answer:

5%

Step-by-step explanation:

P = 64000

Half Yearly C.A = 68921

T = 3 /2 years

now, C.A = P (1 + R/200)^ 2*T

or, 68921 = 64000 * (1 + R / 200) ^ 2*3/2

or, 68921 / 64000 = (1 + R / 200) ^ 3

or, (41 / 40) ^ 3 = (1 + R / 200) ^ 3

or, 41 / 40 = ( 200 + R ) / 200

or,41 = (200 + R) / 5

or, 205 = 200 + R

R = 5 %