Question 354105
let the rate of interest be x%
Orly invested 40000
so orly got an interest of 0.01x*40,000= 400x
Art received 2400 more than Orly
so he earned an interest of  400x +2400 on 80,000 at x%
..
400x+2400 = 0.01x*80,000
400x+2400 = 800x
800x-400x = 2400
400x=2400
x= 6%
...
m.ananth@hotmail.ca