Question

find the simple interest at the rate of 5% p.a for 3 years on that principal which in 4 years 8 months at the rate of 5%p.a gives rs 1400 as simple interest ​

Answer 1

..kindly refers to attachment...

Answer 2

Solution :-

→ SI = Rs.1400

→ T = 4 Years 8 months = 4 + (8/12) = 4 + (2/3) = (14/3) years.

→ R = 5 %

→ P = (SI * 100) / ( R * T)

→ P = (1400 * 100) / [5 * (14/3) ]

→ P = (1400 * 100 * 3 ) / ( 5 * 14 )

→ P = 100 * 20 * 3

→ P = Rs.6000 .

Now,

→ P = Rs.6000

→ R = 5%

→ Time = 3 Years.

→ SI = (P * R * T) / 100

→ SI = (6000 * 5 * 3) / 100

→ SI = 60 * 5 * 3

→ SI = Rs.900. (Ans.)