Adam has some money.
Adam spends $390 on some stickers and
50% of the remainder on some marbles.
In the end, he has
37 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 |
$390 |
Marbles |
Left |
|
1 x 3 |
1 x 3 |
4 x 1 |
3 x 1 |
1 u |
3 u |
3 u |
(a)
50% =
50100 =
12 Remainder
Total : Spent : Left
2 : 1 : 2 - 1
2 : 1 : 1
12 of the remaining amount is the same as
37 of the total amount.
Amount that Adam has at first = 7 u
Amount that Adam spends on the stickers
= 4 u - 3 u
= 1 u
1 u = 390
Amount that Adam has at first
= 7 u
= 7 x 390
= $2730
(b)
Amount that Adam spends on marbles
= 3 u
= 3 x 390
= $1170
Amount that Adam spends more on marbles than on stickers
= 1170 - 390
= $780
Answer(s): (a) $2730; (b) $780