A woman involved a sum money 8890 partly at 10percent and partly at 15percent if the total interest is 560 per annum find the amount invested at 15percent

Answer 1

10% gives $889 after one year.
15% gives $8890*0.15=$1333.5 after one year.
So the annual interest is a minimum of $889.

If only $560 was earned after one year, someone got short-changed, sorry to say.