Level 3
Don and Tom shared 420 stamps. Don got 3 times as many stamps as Tom. How many stamps must Don give Tom so that both of them would have an equal number of stamps?
Level 3
Peter and Oscar had 180 stickers altogether. After Peter gave 21 stickers to Oscar, Peter had 3 times as many stickers as Oscar. How many stickers did Oscar have at first?
Level 3
Bus A and Bus B had a total of 180 passengers. When 16 passengers from Bus A moved to Bus B, Bus A had 4 times as many passengers as Bus B. How many passengers were there in Bus B at first?
Level 3
Nicholas and Cleon shared $60 equally. How much money must Nicholas give to Cleon so that Cleon will have three times as much money as Nicholas?
Level 3
There are 184 paper clips in Box X. There are 4 times as many paper clips in Box Y as in Box X. How many paper clips must be transferred from Box Y to Box X so that there is an equal number of paper clips in each box?
