Zara had some starfruit and passion fruit face masks.
14 of them were starfruit. She gave away
12 of the starfruit face masks and
16 of the passion fruit face masks. In the end, she had 66 starfruit and passion fruit face masks altogether. How many passion fruit face masks did Zara have at first?
| |
Starfruit face masks |
Passion Fruit face masks |
Total |
Comparing starfruit and passion fruit face masks
at first |
1x2 =
2 u |
3x2 =
6 u |
4x2 =
8 u |
Before |
2 u |
6x1 =
6 u |
|
Change |
- 1 u |
- 1x1 =
- 1 u |
|
After |
1 u |
5x1 =
5 u |
|
The number of passion fruit face masks at first is repeated. Make the number of passion fruit face masks the same. LCM of 3 and 6 is 6.
Total number of face masks in the end
= 1 u + 5 u
= 6 u
6 u = 66
1 u = 66 ÷ 6 = 11
Number of passion fruit masks at first
= 6 u
= 6 x 11
= 66
Answer(s): 66
