Question

The sum of interest on two principals for 4 years at 5% rate
simple interest is
Rs 150. & their difference
is 30. Find
both the principals.​

Answer 1

Step-by-step explanation:

let 2 principals be P1 and P2...and sum be P...so SI on P for 4 years at 5% will be 20% which is given as 150...so if 20% of P is 150...P will be 750

now P1+P2 is 750

and P1- P2 is 30

P1 = 390

P2= 360