Oscar spent
14 of his allowance on a basketball set. He spent
12 of the remaining allowance on a frisbee.
- What fraction of his allowance was left?
- If he had left $21, how much allowance did Oscar have at first?
(a)
Fraction of allowance left after spending on a basketball set
= 1 -
14=
34Fraction of remaining allowance left
= 1 -
12=
12Fraction of his allowance left
=
34 x
12=
38(b)
Amount that Oscar had at first = 8 u
Amount that Oscar had left = 3 u
3 u = 21
1 u = 21 ÷ 3 = 7
Total amount that Oscar had at first
= 8 u
= 8 x 7
= $56
Answer(s): (a)
38; (b) $56