Carl spent
25 of his income on a mini-helicopter. He spent
23 of the remaining income on a frisbee.
- What fraction of his income was left?
- If he had left $27, how much income did Carl have at first?
(a)
Fraction of income left after spending on a mini-helicopter
= 1 -
25=
35Fraction of remaining income left
= 1 -
23=
13Fraction of his income left
=
35 x
13=
315(b)
Amount that Carl had at first = 15 u
Amount that Carl had left = 3 u
3 u = 27
1 u = 27 ÷ 3 = 9
Total amount that Carl had at first
= 15 u
= 15 x 9
= $135
Answer(s): (a)
315; (b) $135