Level 3
Kenny had 960 i-phones and some i-pads in his shop. After selling 230 i-phones and buying another 170 i-pads, he had the same number of i-phones and i-pads. How many i-pads did Kenny have at first?
Level 2
Violet had 6 times as many erasers as Jane at first. After Violet gave 40 erasers to Jane, they each had the same number of erasers in the end. How many erasers did Violet have at first?
Level 3
A jar contained $2 and $5 notes with a total value of $518. 4 pieces of $5 were exchanged for $2 notes of similar value. In the end, the number of $2 notes was the same as the $5 notes. How many $5 notes were there at first?
Level 3
Sean and Cathy had some money each. If Cathy gives Sean $49, he will have 3 times as much as Cathy. If Sean gives Cathy $20, he will have the same amount as her. How much money does each person have respectively?