Bob invested $60,000 into two accounts paying simple interest. He invested some of it in an account paying 6% annual interest and some in an account paying 3% annual interest. If he receives $2,400 at the end of the year, how much was invested in each account? $10,000 and $50,000

$20,000 and $40,000

$30,000 in both

$35,000 and $25,000