Ken spent
45 of his salary on a glowstick. He spent
13 of the remaining salary on a yoyo.
- What fraction of his salary was left?
- If he had left $16, how much salary did Ken have at first?
(a)
Fraction of salary left after spending on a glowstick
= 1 -
45=
15Fraction of remaining salary left
= 1 -
13=
23Fraction of his salary left
=
15 x
23=
215(b)
Amount that Ken had at first = 15 u
Amount that Ken had left = 2 u
2 u = 16
1 u = 16 ÷ 2 = 8
Total amount that Ken had at first
= 15 u
= 15 x 8
= $120
Answer(s): (a)
215; (b) $120