Usha had some starfruit and apple face masks.
15 of them were starfruit. She gave away
13 of the starfruit face masks and
16 of the apple face masks. In the end, she had 96 starfruit and apple face masks altogether. How many apple face masks did Usha have at first?
| |
Starfruit face masks |
Apple face masks |
Total |
Comparing starfruit and apple face masks
at first |
1x3 =
3 u |
4x3 =
12 u |
5x3 =
15 u |
Before |
3 u |
6x2 =
12 u |
|
Change |
- 1 u |
- 1x2 =
- 2 u |
|
After |
2 u |
5x2 =
10 u |
|
The number of apple face masks at first is repeated. Make the number of apple face masks the same. LCM of 4 and 6 is 12.
Total number of face masks in the end
= 2 u + 10 u
= 12 u
12 u = 96
1 u = 96 ÷ 12 = 8
Number of apple masks at first
= 12 u
= 12 x 8
= 96
Answer(s): 96
