63. Exemplar problems XXIX

Susan invested certain amount of money in two schemes \(A\) and \(B\), which offer interest at the rate of \(8\%\) per annum and \(9\%\) per annum, respectively. She received \(Rs.1860\) as annual interest. However, had she interchanged the amount of investments in the two schemes, she would have received \(Rs.20\) more as annual interest. How much money did she invest in each scheme?

 

 

The amount of investments in scheme \(A\) is \(Rs.\).

 

The amount of investments in scheme \(B\) is \(Rs.\).