Flynn had some oranges and grapefruits. The number of oranges and grapefruits left were the same after Flynn sold
23 of the oranges and
47 of the grapefruits. If he had 81 oranges at first,
- How many oranges were left?
- How many grapefruits did Flynn have at first?
| |
Oranges |
Grapefruits |
Before |
3x3 =
9 u |
7 u |
Change |
- 2x3 =
- 3 u |
- 4 u |
After |
1x3 =
3 u |
3 u |
(a)
Fraction of the oranges left
= 1 -
23 =
13 Fraction of the grapefruits left
= 1 -
47 =
37The number of oranges and grapefruits left were the same. Make the number of oranges and grapefruits left the same. LCM of 1 and 3 is 3.
Number of oranges at first = 9 u
Number of grapefruits at first = 7 u
9 u = 81
1 u = 81 ÷ 9 = 9
Number of oranges left
= 3 u
= 3 x 9
= 27
(b)
Number of grapefruits at first
= 7 u
= 7 x 9
= 63
Answer(s): (a) 27; (b) 63
