Let's assign variables to the number of stickers each boy has:
Let x be the number of stickers Tony has.
John has twice as many, so he has 2x stickers.
Eric has twice as many as John, so he has 2 * 2x = 4x stickers.
Together they have x + 2x + 4x = 7x stickers.
We know that altogether they have 105 stickers, so 7x = 105.
Dividing both sides of the equation by 7, we get x = 105 / 7 = <<105/7=15>>15.
a) Eric has 4x = 4*15 = <<4*15=60>>60 stickers.
b) To have the same number of stickers, Tony must receive 60 - x = 60 - 15 = <<60-15=45>>45 stickers from Eric. Answer: \boxed{45}.
Eric, John and Tony have 105 stickers altogether. John has twice as many stickers as Tony, while Eric has twice as many stickers as John.
a) How many stickers does Eric have?
b) How many stickers must Tony receive from Eric, so that all three boys have the same number of stickers?
1 answer
1 answer