Simon spent
13 of his salary on a frisbee. He spent
34 of the remaining salary on a glowstick.
- What fraction of his salary was left?
- If he had left $20, how much salary did Simon have at first?
(a)
Fraction of salary left after spending on a frisbee
= 1 -
13=
23Fraction of remaining salary left
= 1 -
34=
14Fraction of his salary left
=
23 x
14=
212(b)
Amount that Simon had at first = 12 u
Amount that Simon had left = 2 u
2 u = 20
1 u = 20 ÷ 2 = 10
Total amount that Simon had at first
= 12 u
= 12 x 10
= $120
Answer(s): (a)
212; (b) $120