Question

principal=20000,CI=24200, time=2years find rate​

Answer 1

24200 must be the amount,but however if it is CI then

CI = P[1 + R/100]^n - P

24200 = 20000[1 + R/100]² - 20000

24200 = 20000[{1 + R²/10000 + R/50} - 1]

24200/20000 = R²/10000 + R/50

121 = R²/10000 + 200R/10000

1210000 = R² + 200R

R² + 200R - 1210000 = 0

The equation cannot be solved because Discriminant is less than zero. So it is not possible.