Ahmad spent
15 of his allowance on a yoyo. He spent
34 of the remaining allowance on a glowstick.
- What fraction of his allowance was left?
- If he had left $24, how much allowance did Ahmad have at first?
(a)
Fraction of allowance left after spending on a yoyo
= 1 -
15=
45Fraction of remaining allowance left
= 1 -
34=
14Fraction of his allowance left
=
45 x
14=
420(b)
Amount that Ahmad had at first = 20 u
Amount that Ahmad had left = 4 u
4 u = 24
1 u = 24 ÷ 4 = 6
Total amount that Ahmad had at first
= 20 u
= 20 x 6
= $120
Answer(s): (a)
420; (b) $120