Adam has some money.
Adam spends $120 on some stickers and
30% of the remainder on some marbles.
In the end, he has
58 of the total amount left.
- How much does Adam have at first?
- How much more does Adam spend on marbles than on stickers?
Stickers |
Remainder |
$120 |
Marbles |
Left |
|
3 x 5 |
7 x 5 |
3 x 7 |
5 x 7 |
6 u |
15 u |
35 u |
(a)
30% =
30100 =
310 Remainder
Total : Spent : Left
10 : 3 : 10 - 3
10 : 3 : 7
710 of the remaining amount is the same as
58 of the total amount.
Amount that Adam has at first = 8 u
Amount that Adam spends on the stickers
= 21 u - 15 u
= 6 u
6 u = 120
1 u = 120 ÷ 6 = 20
Amount that Adam has at first
= 8 u
= 8 x 20
= $160
(b)
Amount that Adam spends on marbles
= 15 u
= 15 x 20
= $300
Amount that Adam spends more on marbles than on stickers
= 300 - 120
= $180
Answer(s): (a) $160; (b) $180