Level 2
Xavier, Kevin and John had a total of 126 stamps. Xavier had twice as many stamps as Kevin and John had twice as many stamps as Xavier. How many stamps did Kevin have?
Level 3
In a game, two groups, X and Y folded a total of 2354 paper planes. If Group X folded 1567 paper planes, how many more paper planes did Group X fold than Group Y?
Level 2
Michelle, Rebecca and Chris collected some dolls. Michelle had four times as many dolls as Chris, and Rebecca had twice as many dolls as Chris. If Michelle had 8 more dolls than Rebecca, how many dolls did the 3 girls collect in total?
Level 2
Alicia, Betty and Clara collected some buttons. Alicia had thrice as many buttons as Betty, and Betty had 8 more buttons than Clara. If they had a total of 102 buttons, how many buttons did less buttons did Betty have than Alicia?