Find the simple interest on naira 280 for 5 years at 3 per annum

The formula for simple interest is:

I = P * r * t

Where:
I = Interest
P = Principal
r = Rate
t = Time

Plugging in the given values:

P = ₦280
r = 3% or 0.03 (converted to decimal)
t = 5 years

I = ₦280 * 0.03 * 5

I = ₦42

Therefore, the simple interest on ₦280 for 5 years at 3% per annum is ₦42.

To find the simple interest, we can use the formula:

Simple Interest = (Principal × Rate × Time) / 100

Given that the principal amount (P) is ₦280, the rate (R) is 3% per annum, and the time (T) is 5 years.

Substituting the values into the formula:

Simple Interest = (280 × 3 × 5) / 100
= (840 × 5) / 100
= 4200 / 100
= ₦42

Therefore, the simple interest on ₦280 for 5 years at a 3% per annum rate is ₦42.