Question

at what rate percent per annum will ₹ 2000Amount to ₹ 2800 in 4 years​

Answer 1

Step-by-step explanation

Let the rate of interest be

R

SI = Ammount - principal

Therefore , SI = 2800 - 2000

SI = 800

Now ,

SI = P × R × T/100

800 = 2000 × R × 4/100

800 = 20 × R × 4

80 × R = 800

R = 800/80

R = 10% p.a.