Level 3
David and Eileen had equal amount of money. David spent 12 of his money on food while Eileen spent 34of her money on food. Given that Eileen spent $4 more than David on food, how much did David have at first?
Level 3
There are 60 blue balls and 18 red balls in a basket. 23 of the blue balls are dented. All the red balls are not dented. How many more red balls than blue balls are not dented?