Question

write correct answer​

Answer 1

Answer:

Step-by-step explanation:

AMOUNT = 4X

PRINCIPAL = X

TIME = 60 years

RATE = ?

INTEREST =

W.K.T

AMOUNT = PRINCIPAL + INTEREST

4X =X + Y

4X - 1X = Y

3X = Y

INTEREST = PRINCIPAL * RATE * TIME

3X = X * K / 100* 60

3X/ X= K /100* 60

3 =K /100* 60

3 *100 /60 = K

300 / 60 = K

5 % = K

THUS RATE IS 5 %