Bryan and Adam have some stickers.
45 of Bryan's stickers is 20 more than
15 of Adam's stickers.
Adam has 320 stickers.
- How many stickers does Bryan have?
- How many stickers do Bryan and Adam have altogether?
- How many stickers does Adam have more than Bryan?
(a)
Make the numerators the same.
4 x 15 x 1 of Bryan's stickers =
1 x 45 x 4 of Adam's stickers + 20
45 of Bryan's stickers =
420 of Adam's stickers + 20
Let
120 of Adam's stickers be 1 u.
Number of stickers that Adam has = 20 u
20 u = 320
1 u = 320 ÷ 20 = 16
45 of Bryan's stickers = 4 u + 20
15 of Bryan's stickers = 1 u + 5
55 of Bryan's stickers = 5 u + 25
Number of stickers that Bryan has
= 5 u + 25
= 5 x 16 + 25
= 80 + 25
= 105
(b)
Number of stickers that Bryan and Adam have altogether
= 105 + 320
= 425
(c)
Number of stickers that Adam has more than Bryan
= 320 - 105
= 215
Answer(s): (a) 105; (b) 425; (c) 215