Peter spent
15 of his salary on a board game. He spent
23 of the remaining salary on a marble.
- What fraction of his salary was left?
- If he had left $40, how much salary did Peter have at first?
(a)
Fraction of salary left after spending on a board game
= 1 -
15=
45Fraction of remaining salary left
= 1 -
23=
13Fraction of his salary left
=
45 x
13=
415(b)
Amount that Peter had at first = 15 u
Amount that Peter had left = 4 u
4 u = 40
1 u = 40 ÷ 4 = 10
Total amount that Peter had at first
= 15 u
= 15 x 10
= $150
Answer(s): (a)
415; (b) $150