Ethan spent
25 of his income on a lego set. He spent
23 of the remaining income on a mini plane.
- What fraction of his income was left?
- If he had left $24, how much income did Ethan have at first?
(a)
Fraction of income left after spending on a lego set
= 1 -
25=
35Fraction of remaining income left
= 1 -
23=
13Fraction of his income left
=
35 x
13=
315(b)
Amount that Ethan had at first = 15 u
Amount that Ethan had left = 3 u
3 u = 24
1 u = 24 ÷ 3 = 8
Total amount that Ethan had at first
= 15 u
= 15 x 8
= $120
Answer(s): (a)
315; (b) $120