Question

Divide 15600 into 2 parts that the interest on one at 5% for 5 yrs is = the other at 4.5% for 6 yrs

Answer 1

let 15600 is divided into x and (15600-x)
as interest is same 
A/q,
(x×5×5)/100= ((15600-x)×4.5×6)/100
solving,
⇒x= 8100
so other part = 15600- 8100 =7500