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 $Rs.$.