4 children have some stickers.
Bryan's number of stickers is tripled.
David's number of stickers is quadrupled.
Adam's number of stickers is doubled.
Christian's number of stickers is halved.
In the end, all have 300 stickers each.
- How many stickers does Bryan have at first?
- How many stickers does David have at first?
- How many stickers does Adam have at first?
- How many stickers does Christian have at first?
|
Bryan |
David |
Adam |
Christian |
Before |
? |
? |
? |
? |
Change |
x 3 |
x 4 |
x 2 |
÷ 2 |
After |
300 |
300 |
300 |
300 |
(a)
Number of stickers that each child has in the end is the same.
Number of stickers that Bryan has at first
= 300 ÷ 3
= 100
(b)
Number of stickers that David has at first
= 300 ÷ 4
= 75
(c)
Number of stickers that Adam has at first
= 300 ÷ 2
= 150
(d)
Number of stickers that Christian has at first
= 300 x 2
= 600
Answer(s): (a) 100; (b) 75; (c) 150; (d) 600