Tina had some kiwi and orange face masks.
16 of them were kiwi. She gave away
13 of the kiwi face masks and
13 of the orange face masks. In the end, she had 96 kiwi and orange face masks altogether. How many orange face masks did Tina have at first?
| |
Kiwi face masks |
Orange face masks |
Total |
Comparing kiwi and orange face masks
at first |
1x3 =
3 u |
5x3 =
15 u |
6x3 =
18 u |
Before |
3 u |
3x5 =
15 u |
|
Change |
- 1 u |
- 1x5 =
- 5 u |
|
After |
2 u |
2x5 =
10 u |
|
The number of orange face masks at first is repeated. Make the number of orange face masks the same. LCM of 5 and 3 is 15.
Total number of face masks in the end
= 2 u + 10 u
= 12 u
12 u = 96
1 u = 96 ÷ 12 = 8
Number of orange masks at first
= 15 u
= 15 x 8
= 120
Answer(s): 120
