Question

in how many years the intrest on rs 1200 at 5% simple intrest per annum is equal to the intrest on rs 800 at 7.5% simple intrest per annum in 2.5 years?​

Answer 1

Rate =

P×T

S.I×100

P=1200−1000=200

S.I=30

T=3 years

Rate =

200×3

30×100

=

600

3000

=5%

hope it help you ^_^