Question

W. VIII.
In what time will * 400 amount to 448 at the rate of 4% per annum​

Answer 1

Answer:

Assuming simple interest, it will be four years

Step-by-step explanation:

P = Initial amount = 400

R = rate of interest = 4% per year

T = number of years = ?

A = final amount = 448

SI = Simple interest = (P*R*T)/100 ........Eqn1

Now,

A = P + SI

448 = 400 + SI

Thus, SI = 48

Using Eqn1, we get:

48 = (400*4*T)/100

48 = 16*T

T = 4

The required time is 4 years