Lynn had some mango and lemon face masks.
13 of them were mango. She gave away
13 of the mango face masks and
16 of the lemon face masks. In the end, she had 14 mango and lemon face masks altogether. How many lemon face masks did Lynn have at first?
| |
Mango face masks |
Lemon face masks |
Total |
Comparing mango and lemon face masks
at first |
1x3 =
3 u |
2x3 =
6 u |
3x3 =
9 u |
Before |
3 u |
6x1 =
6 u |
|
Change |
- 1 u |
- 1x1 =
- 1 u |
|
After |
2 u |
5x1 =
5 u |
|
The number of lemon face masks at first is repeated. Make the number of lemon face masks the same. LCM of 2 and 6 is 6.
Total number of face masks in the end
= 2 u + 5 u
= 7 u
7 u = 14
1 u = 14 ÷ 7 = 2
Number of lemon masks at first
= 6 u
= 6 x 2
= 12
Answer(s): 12
