Question

at what rate percent will the interest be half the principal in 10 years​

Answer 1

Answer: 5% pa

Step-by-step explanation:

let the principal be x and rate be r

so ,

SI = prt / 100 = x / 2(given)

⇒x × r × 10 / 100 = x / 2

⇒ 10r = 100 / 2( x gets cancelled)

r = 50 / 10

  = 5% pa