Pierre spent
35 of his salary on a glowstick. He spent
23 of the remaining salary on a toy car.
- What fraction of his salary was left?
- If he had left $18, how much salary did Pierre have at first?
(a)
Fraction of salary left after spending on a glowstick
= 1 -
35=
25Fraction of remaining salary left
= 1 -
23=
13Fraction of his salary left
=
25 x
13=
215(b)
Amount that Pierre had at first = 15 u
Amount that Pierre had left = 2 u
2 u = 18
1 u = 18 ÷ 2 = 9
Total amount that Pierre had at first
= 15 u
= 15 x 9
= $135
Answer(s): (a)
215; (b) $135