Question

2. Find the rate per cent p.a. when 800 yields 80 interest in 2 years.
​

Answer 1

Answer:

interest % = 80×100÷800×2 =5 answer

Answer 2

Answer:

5 r.p.a

let the rate be R

then by the formula of SI

SI = PRT/100

800 × R × 2

80 = -------------------

100

80 = 16R

R=5