Adam and Bryan have some stickers.
23 of Adam's stickers is 42 less than
38 of Bryan's stickers.
Bryan has 128 stickers.
- How many stickers does Adam have?
- How many stickers do Adam and Bryan have altogether?
- How many stickers does Bryan have more than Adam?
(a)
Make the numerators the same.
2x33x3 of Adam's stickers =
3x28x2 of Bryan's stickers - 42
69 of Adam's stickers =
616 of Bryan's stickers - 42
Let
116 of Bryan's stickers be 1 u.
Number of stickers that Bryan has = 16 u
16 u = 128
1 u = 128 ÷ 16 = 8
69 of Adam's stickers = 6 u - 42
19 of Adam's stickers = 1 u - 7
99 of Adam's stickers = 9 u - 63
Number of stickers that Adam has
= 9 u - 63
= 9 x 8 - 63
= 72 - 63
= 9
(b)
Number of stickers that Adam and Bryan have altogether
= 9 u - 63 + 16 u
= 9 + 16 x 8
= 9 + 128
= 137
(c)
Number of stickers that Bryan have more than Adam
= 128 - 9
= 119
Answer(s): (a) 9; (b) 137; (c) 119